Applied Mathematics

Pure Mathematics

Pure Mathematics

Pure Mathematics

Actuarial Science

Actuarial Science

Actuarial Science

Applied Mathematics

Applied Mathematics

Applied Statistics

• Vincent Major Bulinda, Ph.D.
• Lecturer in Applied Mathematics & Health Informatics
•    School of Pure and Applied Sciences, Department of Mathematics and Actuarial Science.
•    PF No.81006
3.      Biography:    
Dr. Bulinda is a skilled mathematician and informatics expert who has made important contributions to applied mathematics and its applications in a variety of fields of computational fluid dynamics, computer science, and health systems, where he uses mathematical modeling and computational tools to discover novel solutions to complicated issues.

Dr. Bulinda actively participated in research projects during his university years, researching topics such as optimization, computer programming, and numerical analysis. His outstanding ability and dedication to studies garnered multiple awards and scholarships during his academic career.

Dr. Bulinda holds a Ph.D. in Applied Mathematics where his research focused on the analysis of hydromagnetic free convection flow of incompressible fluids over a corrugated vibrating bottom surface with heat and mass transfer. His educational background, coupled with a post-master fellowship in Healthcare Capacity Building for Sustainable Development with a specialization in Health Informatics from the University of Nairobi, has equipped him with the necessary skills to integrate mathematical modeling into healthcare solutions. Throughout his academic journey, he developed a solid foundation in various branches of mathematics, including calculus, differential equations, and their applications. He has also gained proficiency in programming languages such as MATLAB, R programming and FLUENT, which have been invaluable tools for numerical simulations and analysis.
He has published multiple research papers in major scientific publications and presented different research findings at various local and international conferences. He also actively mentors aspiring mathematicians and promotes computational thinking and data-driven decision-making

In addition to his scientific interests, Dr. Bulinda is a strong supporter of bridging the gap between academia and industry bringing together interdisciplinary teams, including engineers, computer scientists, and domain specialists, to discover novel solutions to important difficulties. His ability to communicate effectively across disciplines has helped to drive successful collaborations and build an innovative culture.

His knowledge, enthusiasm, and dedication have not only pushed the bounds of mathematical research, but also created new opportunities for the practical application of mathematics in real-world problems. Through his efforts, he continues to inspire future generations of mathematicians and informatics specialists to use mathematics to create positive global change.

4.      Academic Qualifications:   

•    Post-Masters Fellowship in Healthcare Capacity Building for Sustainable Development-Health Informatics Track
University of Nairobi (UON), Institute of Tropical and Infectious Diseases (UNIDIT)
•    Ph.D. Applied Mathematics
Jomo Kenyatta University of Agriculture and Technology (JKUAT)
•    MSc. Applied Mathematics
Jomo Kenyatta University of Agriculture and Technology (JKUAT
•    BSc. Mathematics (major) and Physics (minor)
 University of Eastern Africa, Baraton (UEAB)
•    Kenya Certificate of Secondary Education
St. Peters Seminary, Mukumu

5.      Research Interests:  

  •    Funded Research Works

1.    Research Title: “Programming Optimization-based Simulation in Allocating Medical Doctors in Rural Public Health Facilities in Kenya.” -Post-Masters Fellowship
Faculty of Health Sciences, University of Nairobi (UON), Institute of Tropical and Infectious Diseases & the Department of Public and Global Health.
Funder: USAID through PEPFER under CDC programs.
2.    Research Title: “Analysis of Hydromagnetic Free Convection Flow of Incompressible Fluids over Corrugated Vibrating Bottom Surface with Heat and Mass Transfer.” -PhD Research
College of Applied Sciences (COPAS)
Department of Pure and Applied Mathematics (PAM)
Funder: The National Research Fund (NRF)

•    Other Research Interests
-Mathematical modeling and applications, programming, health informatics and pharmacometrics

6.      Publications & Conferences    
Publications
•    Bulinda, V. M. (2024). Integer Programming Optimization-based Simulation in Allocating Medical Doctors in Rural Public Health Facilities in Kenya. Journal of Advances in Mathematics and Computer Science, 39(6), 8–15. https://doi.org/10.9734/jamcs/2024/v39i61897
•    Bulinda, V. M. (2024). Simulating Allergic Rhinitis Infections in Adults with HIV/AIDS Using Runge-Kutta Fourth Order Method in SIR Model. Journal of Advances in Mathematics and Computer Science, 39(3), 43–53. https://doi.org/10.9734/jamcs/2024/v39i31875
•    Moseti, L.M., Kerongo, J. and Bulinda, V. (2023) Effect of Viscous Dissipation (Φ) on Temperature Distribution of Blood Plasma in Presence of a Magnetic Field. Applied Mathematics, 14, 602-611. doi: 10.4236/am.2023.149036.
•    Rasid O. O., Johana K. S., Jeconia O. A.,  Bulinda M. V. (2023). “Analysis of Forced Convection on Velocity Profile and Temperature Distribution in a Square Enclosure.” Journal of Advances in Mathematics and Computer Science. DOI: 10.9734/JAMCS/2023/v38i101830, Volume 38, Issue 10, Page 121-133, 2023; Article no.JAMCS.107554ISSN: 2456-9968.
•    Mogire, D., Kerongo, J., & Bulinda, V. (2023). Mathematical Modeling of Dynamics of Cancer Invasion in Human Body Tissues. Preprints. https://doi.org/10.20944/preprints202304.0146.v1
•    Moseti L. M., Kerongo J., Bulinda V. (2023). “Numerical Analysis of the Effect of Magnetic Field and Heat Transfer on Plasma through an Asymmetric Non-Uniform Channel”, International Journal of Pure and Applied Mathematics Research, Svederg Open, DOI: 10.51483/IJPAMR.3.2.2023.89-101. v3(2).
•    Onyancha C. K., Kerongo J., Bulinda V. (2023). “Optimization of Magnetohydrodynamic Parameters in Two- Dimensional Incompressible Fluid Flow on a Porous Channel”, International Journal of Pure and Applied Mathematics Research, Svederg Open, DOI: 10.51483/IJPAMR.3.2.2023.20-32. v3 (2).
•    Bulinda V.M, Giterere K. Kiogora R (2020). "Analysis of Magnetohydrodynamics Flow of Incompressible Fluids over Oscillating Bottom Surface with Heat and Mass Transfer, International Journal of Mathematics and Mathematical Sciences, Hindawi, DOI: 10.1155/2020/4054578.
•    Bulinda V.M, Giterere K. Kiogora R (2020). "MHD Free Convection Flow of Incompressible Fluids over Corrugated Vibrating Bottom Surface with Hall Currents, Heat and Mass Transfer, Journal of Applied Mathematics, Hindawi, vol. 2020, DOI: 10.1155/2020/2589760.
•    Bulinda V.M (2017). "Drought Prediction Numerical Model, North-Eastern Region of Kenya", Imhotep, African Journal of Pure and Applied Mathematics, Cameroon. (Undergoing Final review).
•    Bulinda V.M (2016). "Mathematical Modelling of The East Africa Marine Systems (TEAMS)", Imhotep African Journal of Pure and Applied Mathematics, Cameroon 3. N- 1 Pp 12-23.
•    Bulinda M.V (2015). "Long Distance Data Transmission using Bessel Function of the First Kind", The SIJ Transactions on Computer Networks and Communication Engineering (CNCE), 3, No. 6, Pp. 66-69.
•    Bulinda M.V, Okelo J.A, Sigei J.K, Okwoyo J. (2013). "Application of Bessel Function of the First Kind in Frequency Modulated Transmission "The SIJ Transactions on Computer Networks and Communication Engineering (CNCE), 1, No. 4, Pp. 84-87.

Conferences
•    Attended (virtually) the 22nd International conference on ADIS and STIs in Africa (ICASA 2023) in Harare, Zimbabwe: 4th December-9th December 2023.
Theme: The latest advancements in research and technology aimed at combating HIV/AIDS, Malaria, TB, and Hepatitis B, emerging viral diseases and achieving the goal of ending the AIDS epidemic by 2030.
My presented work: Application of Validated Mathematical Model in Estimating Art for Treatment.
•    Attended (virtually) a Strengthening Post-graduate Supervision Course sponsored by Nelson Mandela University, South Africa: 10th September-17th December 2023.
•    Attended 7th Strathmore International Mathematics Conference (SIMC 2023): 10th-14th July 2023.
Theme: Promoting Challenge-Driven Research in Mathematical Sciences and Building Collaborative Research Networks.
My presented work; Application of the Modified SIR Model in Associating Allergic Rhinitis infections with HIV-AIDS in Adults
•    Attended Africa STACK conference for undergraduate mathematics. Masinde Muliro University of Science and Technology, Kakamega: 19th-24th June 2023.
•    Virtually attended Southern Africa Mathematical Sciences Association (SAMSA) Annual Conference, Maputo, Eduardo Mondlane University (UEM): 22nd -25th November 2022.
Theme: Mathematical Sciences for Technology Innovation and Human Development;
My presented work: Application of the Modified SIR Mathematical Modeling in Vaccination of Allergic Rhinitis under One Health Symposium schematic program.
•    Attended 2022 STACK (System for Teaching and Assessment using a Computer Algebra Kernel) Workshop. Maseno University, Kisumu: 4th-8th July 2022.
•    Attended Southern Africa Mathematical Sciences Association (SAMSA) Annual Conference, Malawi Sun Hotel, and Blantyre): 25th-28th November 2019.
Theme: A Catalyst for Sustainable Development. My presented work: MHD Free Convection Flow of Incompressible Fluids over Corrugated Vibrating Bottom Surface with Hall Currents, Heat and Mass Transfer.
•    Attended Survival Analysis for Cancer Epidemiology Workshop at University of Nairobi, Chiromo: 21st-22nd October 2019.
Theme: The role of population-based cancer survival research in informing policy.
•    Attended 5th Strathmore International Mathematics Conference (SIMC 2019): 12th-16th August 2019.
Theme: Promoting Challenge-Driven Research in Mathematical Sciences and Building Collaborative Research Networks.
My presented work; Temperature and Concentration Analysis of MHD Free Convection Flow of Incompressible Fluids over Corrugated Vibrating Bottom Surface with Heat and Mass Transfer.
•    Attended Scientific Revival Day of Africa Celebrations (SRDA) 2019-Safari Club Hotel Nairobi: 4th July 2019.
Theme: Food Security and Universal Health Care in Kenya.
My presented work; Application of Mathematical Utilization Network Modelling Techniques in Public Health Service Planning in Kenya.
•    Attended 3rd Kenyatta University International Mathematics Conference: 17th-20th June 2019.
Theme: Mathematical Research for Achieving Sustainable Development Goals.
My presented work; Velocity Analysis of MHD Free Convection Flow of Incompressible Fluids over Corrugated Vibrating Bottom Surface with Heat and Mass Transfer.
•    Attended University of Nairobi Epidemiological Modelling Workshop: 8th-11th April 2019.
Theme: Uses of mathematical models in describing past and future disease transmission, and how these models can be applied in evaluating the electiveness of disease control interventions and comparing policy options to reduce disease burden.
•    Attended University of Nairobi and Kenyatta National Hospital International Conference on Health (ICH 2018): 7th-9th November 2018.
Theme: Towards Universal Health Coverage
My presented work; Numerical Analysis of Plasma in Elastic Vessels with Heat and Mass Transfer in Peak Concentration.
•    Attended 4th Strathmore International Mathematics Conference: 19th-23rd June 2017.
Theme: Enhancing Collaborative Research in Mathematical Sciences
My presented work; Drought Prediction Numerical Model, North-Eastern Region of Kenya.
7.      Classes taught:    •    Postgraduate Units; Numerical Solutions of Differential Equations, Dynamical Systems I, II, Methods of Applied Mathematics I, II, Advanced Mathematical Modelling, Numerical Analysis I, Complex Analysis I, II, Fluid Mechanics I,II,III,  Ordinary Differential Equations I,II,III, Operations Research I,II,III.
•    Undergraduate Units; Ordinary Deferential Equations I, II, Partial Deferential Equations I, II Operations Research I, II, Method of Applied Math I,II,  Vector Analysis, Project in Applied Mathematics, Mechanics, Numerical Analysis I, II,  Basic Mathematics, Calculus I, II,III Mathematical Modelling, Geometry and Linear Algebra, Mathematics for Sciences, Mathematical Methods for Computer Scientists, Fluid Mechanics I, II.
8.      Other relevant links:    •    https://orcid.org/0000-0002-6418-350X
•    https://scholar.google.com/citations?hl=en&user=8Y3-ofQAAAAJ
9.  Official Contact Details:    Tel: +254 727 550 027
Email: vbulinda@kisiiuniversity.ac.ke
Kisii University
P.O Box 408-40200, Kisii. KENYA.

• OBOGI ROBERT KARIEKO,
• DOCTOR OF PURE MATHEMATICS.
•    SCHOOL OF PURE AND APPLIED SCIENCES, DEPARTMENT OF MATHEMATICS AND ACTUARIAL SCIENCE
•    PF No. 80912

      Biography:    
I’m a pure mathematician by profession and prolific researcher in mathematical sciences and applications to other fields. My research interest is in functional analysis, particularly, operator theory. I endeavor to do research that has applications to other areas like Quantum Mechanics, Mathematical Modelling and Analysis and Contemporary Issues in Business and Economics, Computing and Information Technology. The output of my research is for solving real life problems of socio-economic nature in Kenya (and other developing countries), Africa and Globally.

      Academic Qualifications:    

2013-2017    PhD Pure Mathematics
    On Complete Positivity and Boundedness of Operators on Non-Unital C*-algebras
SPECIALIZATION- FUNCTIONAL ANALYSIS & OPERATOR THEORY    Jaramogi Oginga
Odinga University
 of Science and
 Technology

2008 -2010    Master of Science
 (Pure Mathematics)    The M0 –Matrix Completion Problem for some Digraphs of
 5×5 matrices with five edges
SPECIALIZATION-COMBINATORICS AND MATRIX THEORY    Kenyatta University
2001-2005    Bachelor of  Education(Arts)-Mathematics and Geography- First class honours    N/A    Egerton University
1996-1999           KCSE    N/A    Cardinal Otunga
High School
 Mosocho
1987-1995    KCPE    N/A    Riangoko primary
 School

      Research Interests:   

1. Functional Analysis/Operator theory,
2. Mathematical Modelling and Analysis,
3. Number theory and applications to computing
4. Coding Theory

     Publications:   

YEAR 2024
1.    Asamba Samwel Okeri, Benard Okelo, Robert Obogi, and Priscah Omoke: AI-Techniques in analysis of semi-continuity in Lp-spaces. SSAR Journal of Multidisciplinary Studies, Vol 01, Issue 01, April 2024, 72-78

YEAR 2023
1.    Obogi Robert Karieko: On Norms of Derivations Implemented by Self-Adjoint Operators. Open Journal of Mathematical Analysis, 2023, 7(1), 42-55, doi:10.30538/psrp-oma2023.0122
2.    Ombaki Richard, Kerongo Joash and Obogi Robert (2023). Asymptotic Synchronization of Nonlinear Functional Neutral Delay Difference Equations with Variable Co-efficients. International Journal of Pure and Applied Mathematics Research, 3(2), 48-59. doi: 10.51483/IJPAMR.3.2.2023.48-59
3.    Asamba Samwel Okeri, Benard Okelo, Robert Obogi, and Priscah Omoke: Characterization of semi-continuity in Lp-spaces. Mathematical Analysis and its Contemporary Applications, Volume 5, Issue 3, September 2023, 91-100. ISSN 2716-989, doi: 10.30495/2023.2006888.1081
4.    Kimtai Boaz Simatwo, , Runji Flora Mati and Obogi Robert Karieko, Enumeration of Cyclic Codes Over GF (23). Journal of Advances in Mathematics and Computer Science Volume 38, Issue 9, Page 194-206, 2023. ISSN: 2456-9968. DOI: 10.9734/JAMCS/2023/v38i91815
5.    M.Orina, N.B.Okelo, R.K.Obogi, On Orthogonality of Elementary Operators in Normed Spaces. Journal of Mathematical Analysis and Modeling. ISSN 2709-5924 doi:10.48185/jmam.v4i1.505 (June 2023) Vol.4(1) : 52-77
6.    Obogi Robert Karieko, Certain Orthogonality Conditions for Finite Elementary Operators in Normed Spaces. Functional Analysis FAC – SEAMS Volume 2, April, 2023, ID 3
7.    J.Z.Nyabonyi, N. B. Okelo, R. K. Obogi, On Norm Estimates for Derivations in Norm-Attainable Classes. European Journal of Mathematical Analysis. https://doi.org/10.28924/ada/ma.3.9 . Vol. 3 (2023), 9. Jan 16, 2023

YEAR 2022
1.    Rogito Ombati Zablon, Kerongo Joash and Obogi Robert, Mathematical Modeling of Seepage Velocity Influence on Transport of Dissolved Heavy Metals from Waste-Dumps to River Channel. International Journal of Pure and Applied Mathematics Research. https://doi.org/10.51483/IJPAMR.2.2.2022.75-82
2.    Obogi Robert Karieko, On Contractivity and Normaloidity of Hilbert Space Operators. Functional Analysis FAC – SEAMS Volume 1, September, 2022, ID 3
3.    N. C. Nyamwaya, R. K. Obogi, Benard Okelo, On Supraposinormality of Operators in Norm-Attainable Classes International Journal of Open Problems in Computer Science & Mathematics., Vol. 15, No. 2, June 2022 Print ISSN: 1998-6262, Online ISSN: 2079-0376

YEAR 2021
1.    J.Z.Nyabonyi, N. B. Okelo, R. K. Obogi, On Norm-Attainability Condition for Derivations in Banach algebras. South Asian Research Journal of Engineering and Technology, ISSN: 2664-4150, Volume 3(3), August 2021
2.    A.O.Nyakebogo, J.M.Kerongo, R.K. Obogi, Stability and Consistency Analysis of FTCS Scheme for Unsteady Magnetohydrodynamic Fluid Flow over a Vertical Stretching Sheet.  International Journal of Scientific Research in Mathematical and Statistical Sciences, Volume-8, Issue-4, pp.38-43, August (2021)
3.    Nyakebogo Abraham Osogo, Kerongo Joash Morara, Obogi Robert Karieko.   The effect of Variable Viscosity and Unsteady Free Convective Fluid Flow Over a stretching surface in the presence of Thermal Radiation and Viscous Dissipation. International Journal of Advances in Scientific  Research and Engineering (IJASRE) ISSN: 2454-8006 Volume 7(6) , June 2021 www.ijasre.net
4.    N. C. Nyamwaya, N. B. Okelo, R. K. Obogi, On Characterization of Supra-posinormal Operators in Norm-Attainable Classes South Asian Research Journal of Engineering and Technology, ISSN: 2664-4150, Volume 3(3), June 2021
5.    M.Orina, N.B. Okelo, R.K. Obogi, On Finiteness of Elementary Operators in Normed Spaces. South Asian Research Journal of Engineering and Technology, ISSN: 2664-4150, Volume 3(3), June 2021

YEAR 2020
6.    Nyakebogo Abraham Osogo, Kerongo Joash Morara, Obogi Robert Karieko.  Effects of Magnetic Parameter and Injection Velocity on Unsteady Magneto hydrodynamic Fluid Flow over a Vertical Stretching Sheet in the Presence of Induced Magnetic Field. International Journal of Science and Research (IJSR) ISSN: 2319-7064 Volume 9 Issue 11, November 2020 www.ijsr.net
7.    Oyombe Aluala, Oduor Okoya Michael, Obogi Robert and Kerongo Joash. Lie Symmetry Solution of Third Order Nonlinear Ordinary Differential Equation. International Journal of Mathematics and its Applications, ISSN:2347-1557, 8(2) 2020, 143-154
8.    Wanjala Victor, R.K. Obogi and M.O.Okoya On n-metric equivalence of operators. International Journal of Mathematics and its Applications, ISSN:2347-1557, 8(1) 2020, 107-109
9.    Peter O. Ojwala, Michael O. Okoya, Robert Obogi  "Lie Symmetry Solutions of Coupled Lotka-Volterra Competition-Diffusion Model" International Journal of Mathematics Trends and Technology 66.3 (2020):39-52.

YEAR 2019
10.    Obogi Robert Karieko: Convergence Of Positive And Completely Positive Operators On Non-Unital C*-Algebras. International Journal of Functional Analysis, Operator Theory and Applications, ISSN: 0975-2919, Volume 11, Number 2, December 2019, Pages 71-78.
YEAR 2018
11.    P.K. Tarus, W.C.Koech  and R. Obogi: Modelling Of Motor-Gear-Generator System. Asian Journal of Mathematics, ISSN: 2395-4205 (P), ISSN: 2395-4213 (O), 25(5): 279-288, 2018

YEAR 2017
12.    Kirwa P, Rotich T and Obogi R: A mathematical Model of the effect of Immuno-Stimulants on the Immune Response to HIV infection. International Journal of Latest Engineering  Research and Applications(IJLERA), ISSN: 2455-7137, Volume 02, issue 08, August 2017, PP 01-07 www.ijlera.com  
13.    Kirwa P, Rotich T, Obogi R and Tanui P.K: Boundedness and Positivity of a Mathematical model of the immune response to HIV infection. International Journal of Scientific Research Engineering & Technology(IJSRET), ISSN: 2278-0882, Volume 6, issue 8, August 2017, www.ijsret.org
14.    Sabasi Omaoro, J. Kerongo, R.K Obogi and N.B Okelo: Generalizations of normal self-adjoint operators. Journal of Global research in  Mathematical archives  Vol 4, No 9, 13-17, August 2017, http://www.jgrma.info
15.    S.Asamba, N.B. Okelo, R.K.Obogi: Characterization of Spectra of Posinormal Operators. International journal of Modern Science  and Technology, ISSN:2456-0235, Vol.2. Issue 7- July 2017.

YEAR 2016
16.    Sabasi Omaoro, R.K Obogi and N.B Okelo: On certain norms and numerical radius attainability conditions for normal operators. International journal of Academic studies 2(1): (2016) 21-27, www.ijacademicstudies.com

YEAR 2015
17.    P.O Mogotu, J.Kerongo, R.K Obogi and N.B Okelo: Certain properties of normaloid operators. Journal of Advanced Mathematics 01[01] 2015, www.asdpub.com/index.php/jam
18.    N.B. Okelo, R. K. Obogi:  On convergences of contractive maps in metric spaces.
      Journal of Advanced Mathematics 01[01] 2015, www.asdpub.com/index.php/jam
19.    Sabasi Omaoro, J. Kerongo, R. K. Obogi and N. B. Okelo: On reflexivity, denseness and compactness of numerical radius attainable operators. Bulletin of Advanced Scientific Research 01 [01] (2015) , www.asdpub.com/index.php/basr
20.    R. K. Obogi, N.B. Okelo, Omolo Ongati: New Conditions for positivity of operators in non-unital C*-algebras. Pure Mathematical Sciences, Vol.4, (2015), no. 2, 77-81. http://dx.doi.org/10.12988/pms.2015.41133
21.    R. K. Obogi,  J.N.Bosire, Okelo N.B, Omolo Ongati: Conditions for positivity of operators in non-unital C*-algebras. International. Journal of Mathematical Analysis, Vol. 9, (2015), no. 2, 91-94. http://dx.doi.org/10.12988/ijma.2015.411349

YEAR 2014
22.    N.B.Okelo, Omolo Ongati and Obogi Robert Karieko: Norm inequalities for Positive Elementary Operators and Entanglement of States. Journal of Global Research in Mathematical Archives. Vol. 2, No. 5, (2014), 18-26. ISSN 2320-5822
        http://www.jgrma.info
23.     N.B.Okelo, Omolo Ongati and Obogi Robert Karieko: Norm inequalities of Norm- Attainable  Operators and their Orthogonal Extensions. Journal of Global Research in Mathematical     Archives. Vol. 2, No.5,(2014), 1-9. ISSN 2320-5822 http://www.jgrma.info
24.     N.B.Okelo, Omolo Ongati and Obogi Robert Karieko: Projective Norms and Convergence of   Norm –Attainable Operators. Journal of Global Research in Mathematical Archives. Vol. 2, No. 5, (2014), 10-17. ISSN 2320-5822 jgrma.info

YEAR 2013
25.     Obogi R. K,  Kerongo  J: The M0 –Matrix Completion Problem for some  Digraphs of 5×5 matrices with five edges, International Journal of Innovative Research and Studies Vol 2 Issue 12  (2013), 589-626. ISSN 2319-9725
o    
    Classes you teach: 

   Real Analysis, Measure Theory, Ring Theory, Linear Algebra, Field Theory, Abstract Algebra, Mathematics for Computer Science, Discrete Mathematics, Topology, Functional Analysis, Group Theory, Commutative Algebra, Coding Theory, Complex Analysis, Field Theory, Operator Theory and Number Theory.

8.      Other relevant links:    ORCID NO:              https://orcid.org/0000-0001-8798-6412

9.  Official Contact Details:    robogi@kisiiuniversity.ac.ke
+254723815828

Dr. Fred Nyamitago Monari
Lecturer in Applied Statistics
School of Pure and Applied Sciences, Kisii University
 
3.      Biography:   

Dr. Fred Nyamitago Monari is a Lecturer and Research Fellow at the School of Pure and Applied Sciences, Kisii University. He holds a PhD in Applied Statistics from Jomo Kenyatta University of Agriculture and Technology. Dr. Monari specializes in Statistics and Biostatistics, with expertise in advanced statistical modeling, clinical trial design, and high-dimensional data analysis. He has published extensively in areas such as mortality modeling and credit risk analysis. A member of several professional organizations, he is committed to advancing the field through research, teaching, and collaboration with global institutions.

4.      Academic Qualifications:    
PhD in Applied Statistics
Year of Award: 2021
Awarding Institution: Jomo Kenyatta University of Agriculture and Technology
Title of Postgraduate Thesis: Modelling Credit Risks using Unbounded Transitional Matrices.
MSc in Applied Statistics
Year of Award: 2012
Awarding Institution: Jomo Kenyatta University of Agriculture and Technology
Title of Postgraduate Thesis: Modelling Credit Risks using bounded Transitional Matrices.
BSc in Mathematics (Statistics Major)
Year of Award: 2006
Awarding Institution: Egerton University
Title of Postgraduate Thesis: N/A

KCSE
Year of Award: 1999
Awarding Institution: Cardinal Otunga High School Mosocho
Mean grade: B plain

5.      Research Interests:   

Dr. Fred Nyamitago Monari's research interests lie at the intersection of Applied Statistics, Biostatistics, Infectious Disease Modeling, High-Dimensional Data Analysis, And Data Science. He focuses on developing innovative statistical methods to enhance clinical trial design, variable selection, and predictive modeling. His work aims to improve public health outcomes by integrating genomic data, advanced statistical techniques, and data science methodologies. Dr. Monari has published extensively on topics such as Mortality Modeling, Credit Risk Analysis and the application of Machine Learning In Biostatistics.
6.      Publications:   

Journals
1.    Marabi, P. M., Musyoki, S. K., Monari, F., Kosiyo, P., & Ouma, C. (2024). Coagulation hallmark indicators of menorrhagia in a comparative study between menorrhagic and healthy women attending Bungoma County Referral Hospital in Kenya. African Journal of Medicine and Medical Sciences. Advance online publication. https://doi.org/10.21203/rs.3.rs-3944100/v1
2.    Onchere, W. O., Maina, C. B., & Monari, F. N. (2023). Gumbel Copula Mortality Dependence Modeling. African Journal of Applied Statistics, 10(1), 1383-1397. https://doi.org/10.16929/ajas/2023.1383.273
3.    Onchere, W. O., Maina, C. B., & Monari, F. N. (2023). Mortality graduation using a rating up approach. International Journal of Statistics and Applied Mathematics, 8(5), 130-134.
4.    Monari, F. N., Kiage, O., & Ondicho, H. (2023). Exploring student performance variations at Kisii University: An investigation of teaching methods, faculty comparisons, and academic progress. International Journal of Statistics and Applied Mathematics, SP-8(4), 231-236. https://doi.org/10.22271/maths.2023.v8.i4Sd.1072
5.    Dennis, M. A., Monari, F., Nyabwanga, R. N., & Agasa, L. O. (2022). Imputation methods on Hardy Weinberg equilibrium for missing genome wide expression data. Maths Journal, 7(5), 114-124.
6.    Monari, F. N., Tinega, R., & Agasa, L. (2020). Modelling economic determinants of youth unemployment using multiple linear regression: A case study of Kenya. International Journal of Statistics and Applied Mathematics, 5(6), 7-11.
7.    Monari, F. N., Orwa, G. O., Mungátu, J. K., & Odhiambo, R. (2020). Comparison between weighted adjustment, diagonal adjustment, quasi optimization and Gibbs sampler methods in deriving the generator matrix of an 8 × 8 Credit transition matrix. International Journal of Statistics and Applied Mathematics, 5(6), 1-6. DOI: 10.9790/5728-1204058995
8.    Monari, F. N., Orwa, G. O., Mungátu, J. K., & Odhiambo, R. (2019). Analysis of bank migration of credit risk using transition matrices. Global Scientific Journal, 7(6), 1-10. Retrieved from https://www.globalscientificjournal.com/article/xxxxx
9.    Monari, F. N., Orwa, G. O., Mungátu, J. K., & Odhiambo, R. (2016). Asymptotic properties of the Markov chain model method of finding Markov chains generators of empirical transition matrices in credit ratings applications. IOSR Journal of Mathematics (IOSR-JM), 12(4), 130-134.
DOI: 10.9790/5728-1204035360    
10.    Monari, F. N., Orwa, G. O., Mungátu, J. K., & Odhiambo, R. (2016). Comparing the efficiency of cohort, time homogeneous and non-homogeneous techniques of estimation in credit migration matrices. IOSR Journal of Mathematics (IOSR-JM), 12(4), 120-129. DOI:10.9790/5728-1204058995

7.      Classes taught:   

•  Biostatistics
•  Statistical Simulation
•  Design and Analysis of Experiments
•  Probability and Statistics
•  Parametric and Nonparametric Methods
•  Inferential Statistics
•  Demography
•  Time Series

8.      Other relevant links:   

https://scholar.google.com/citations?hl=en&user=oJe6jTkd67MC  
https://www.linkedin.com/in/dr-fred-monari-phd-8840a242/

 
9.  Official Contact Details:    fmonari@kisiiunuversity.ac.ke

School of Pure and Applied Science; Department of Mathematics

Biography

Jared Nyaberi Bosire is currently a tutorial fellow in the School of Pure and Applied Sciences, Department of Mathematics at Kisii University, Kenya. He has previously worked as a lecturer at Gusii Institute of Technology, and later at Kisii National Polytechnic. He also worked as a Mathematics and Business Studies teacher at Marani Secondary School.
 Academic qualifications

1. Master of Science in Applied Mathematics, JKUAT, Kenya. (2015)
 2. Master of Business Administration (Finance), Egerton University, Kenya. (2010)
3. Bachelor of Education (2nd Class Honors, Upper division; Mathematics/Business Studies) Egerton University, Kenya (2001)

Research Interests   

1. Mathematical modelling
2. Traffic dynamics
3. Heat transfer 

   Publications  

1. J. N. Bosire, J. K. Sigei, J. K. Okello, J. Okwoyo; Zhang's Second Order Traffic Flow Model and its Application to the Kisii-Kisumu Highway within Kisii County. Volume 4, Issue 4, April 2015 www.ijsr.net
2. R. K. Obogi, J. N. Bosire, Okelo N. B., Omolo Ongaki; Conditions for Positivity of Operators in Non-Unital C* algebras.
International Journal of Mathematical Analysis, Vol 9, (2015) No. 2, 91-94
http://dx.doi.org/10.12988/ijma2015.411349

  Classes taught  

1. Linear Algebra I (Math 210)

2. Complex Analysis 1 (Math 315)
3. Linear Algebra II (Math 316)
4. Ordinary Differential Equations I (Math 314)
5. Geometry and Linear Algebra (Math 114)

 Other    N/A  relevant links    
 Official    jaredbosire@kisiiuniversity.ac.ke

      Biography:    

Dr. Mwau Cynthia is skilled in delivering lectures and creating effective course materials with 6 years of experience in teaching at institutions of higher learning. She is a dynamic lecturer experienced in creating curriculum materials and doing impactful research aimed at mitigating risks.
She has attended research training at:
•     Institute for Global Health and Development, Agha Khan University.
She is also member of TASK and ICPAK and due to her brilliant research ideas, she has been able to secure scholarships such as HELB postgraduate scholarship.
She has vast expertise in modelling of aggregate losses, product development and actuarial-health related research.

      Academic Qualifications:    

•    2019 – 2022 Doctor of Philosophy in Actuarial Science, University of Nairobi.
    Thesis Title: Phase Type Models Applied in Estimation of Aggregate   Claim Losses of Secondary Cancer Cases
•    2017 – 2019 Master of Science in Actuarial Science, University of Nairobi.
    Project Title: Estimation of Aggregate Loss Distribution for Loss Reserving Using Poisson and Gamma Mixtures
•    2012 – 2016 Bachelor of Science in Actuarial Science, University of Eldoret.
•    2013 – 2016 Certified Public Accountant (CPA-K), Aberdeen College of Accountancy.
•    2008 – 2011 Kenya Certificate of Secondary Education, Makueni Girls High School.

      Research Interests:   
•    Modeling research solutions to emerging research and policy issues in risk related matters at the national and international levels.
•    Improving modeling of risk through development of models that can help in mitigation of emerging risks.
•    Publishing papers and articles on how to improve on risk modeling and mitigation using actuarial models.
•    Aggregate Loss Distributions- Phase type models.
      Publications:
    Book Chapters
•    Samson B., Cynthia M., & Howard O. (2024). " Factors Impacting Students' Well-Being and Possible Intervention Strategies in Kenyan Universities". IGI- GLOBAL (pp. 317–337)

    Journal papers
•    Omukami, H., Mwende, M. C. (2024). Application of Laplace Transform to Derive Exponentiated Logistic and Inverse Gaussian Distributions. Journal of Advances in Mathematics and Computer Science, 39(8), 57-67.
•    Mwau, C. M., Weke, P. G., Bundi, D. N., & Ottieno, J. M. (2022). Phase Type Zero Truncated Poisson Lindley Distributions and their application in modeling Secondary Cancer Cases. Afrika Statistika, 17(1), 3145-3163.
•    Mwende, C., Weke, P., Bundi, D., & Ottieno, J. (2021). Estimation of Aggregate Losses of Secondary Cancer Using PH-OPPL and PH-TPPL Distributions. Open Journal of Statistics, 11(5), 838-853.
•    Mwau, C. M., Weke, P. G., Bundi, D. N., & Ottieno, J. M. (2021). Aggregate Loss Distribution for Modeling Reserves in Insurance and Banking Sectors in Kenya, Far East Journal of Theoretical Statistics, Vol. 62, No.1, pp. 17-34
•     Mwau, C. M., Weke P. G., Ntwiga, D. B., & Ottieno, J. M. (2021). Estimation of aggregate losses of secondary cancer cases using PH Panjer class (a, b, 1) distributions. Afrika Statistika, 16(4), 3041-3059

    Conferences
•    July 2023: 7th Strathmore International Mathematics Conference, Strathmore University.
    Paper Title: Discrete Mixtures of Minimum Order Statistics from a Standard Logistic Distribution.
•    July 2023: The 2023 PDC Experience: Exploring The Diverse Career Landscape In Actuarial Science: Opportunities And Pathways, KCA University.
    Paper Title: Phase Type Models Applied in Estimation of Aggregate Claim Losses of Secondary Cancer Cases.
•    July 2022: IPMS-APREA Scientific Workshop, Utalii Hotel.
    Paper Title(s):
    Estimation of aggregate losses of secondary cancer cases using PH Panjer class (a,b,1) distributions.
    Phase Type Zero Truncated Poisson Lindley Distributions and their application in Modelling HIV related opportunistic infection.
•    Sept. 2022: The 2022 PDC Experience: Insurtech and Fintech, Daystar University.
    Paper Title: Consumer Purchase Discount Model

    Invited seminar talks
•    April 2021:  Matrix Recursion for Panjer class (a,b,0) and its Application in Modelling Aggregate Claim Losses of Secondary Cancer Cases, Faculty of Science and Technology, University of Nairobi.

      Classes you teach:   
•    BACS 401: Pension Funds
•    BACS 404: Computational Finance
•    BACS 410: Mathematics for Demography and Graduation
•    BACS 212: Fundamental of Actuarial Mathematics
•    BACS 100: Introduction to Actuarial Science
•    MATH 112: Basic Mathematics

      Other relevant links:   
•    Google scholar: https://scholar.google.com/citations?user=aDRRUu0AAAAJ&hl=en
•    Linked in:
https://www.linkedin.com/feed/

  Official Contact Details:   
• University Email: cynthiamwende@kisiiuniversity.ac.ke

 • Dr. Henry Ondicho Nyambega
• Doctor of Applied Statistics

      Biography:  

  Dr. Henry Ondicho Nyambega is a Lecturer of Statistics at the Department of Mathematics and Actuarial Science. He holds a PhD and MSc. in Applied Statistics from Jomo Kenyatta University of Agriculture & Technology, a Post Graduate Diploma in Education from Egerton University and Bachelor of Science Degree from the University of Nairobi. He’s an expert in statistical modelling and data science and an educator, a career spanning over 25 years. He has a number of publications in journals in his area of expertise, presented at international conferences and is an active member of the Statistical Society of Kenya (SSK).
     Academic Qualifications:    

Ph.D.  Applied Statistics  2022    Jomo Kenyatta University of Agriculture and Technology    Bayesian Estimation of the Survivorship Function for Censored Data using Nonparametric Priors with Nonconjugate Dirichlet Processes
MSc.  Applied Statistics  2012    Jomo Kenyatta University of Agriculture and Technology     Univariate Outlier Identification Procedure for Skewed Distributions
PGDE Postgraduate Diploma in Education     2000    Egerton University    
BSc. Mathematics     1994    University of Nairobi    

      Research Interests:    
Statistical modeling and data science
      Publications & Conferences    
Publications
•    Monari, F, Otwande, K, Ondicho, H.N. (2023) Exploring Student Performance Variations at Kisii University: An Investigation of Teaching Methods, Faculty Comparisons and Academic Progress. International Journal of Statistics and Applied Mathematics SP-8(4): 231-236.
•    Ondicho, H.N., Orwa, G.O., Otieno (2019) On Bayesian Estimation of Dirichlet Process Lognormal Mixture Models and Comparison of Treatments in Censoring. International Journal of Statistical Distributions and Applications doi: 10.11648/j.ijsd.20190502.13 ISSN: 2472-3487 (Print); ISSN: 2472-3509 (Online). Vol. 5, No. 2, 2019, pp. 38-45.
 http://www.sciencepublishinggroup.com/j/ijsda.
•    Ondicho, H.N., Orwa, G.O., Otieno, R.O. and Mung’atu, J.K. (2017) Bayesian Estimation of Survivor Function for Censored Data Using Lognormal Mixture Distributions. IOSR Journal of Mathematics (IOSR-JM) e-ISSN: 2278-5728, p-ISSN: 2319-765X. Volume 13, Issue 2 Ver. IV (Mar. - Apr. 2017), Pages 19-32 www.iosrjournals.org.
•    Ondicho, H.N., Orwa, G.O., Otieno, R.O. and Mung’atu, J.K. (2017) Prior Specification in Bayesian Estimation when Fitting Dirichlet Process Lognormal Mixture Models. IJRDO-Journal of Mathematics ISSN: 2455-9210, Volume 3, Issue 4, April 2017, Paper 1, Pages 1-12

Conferences
•    Attended the International conference on mathematical, pure and applied sciences, at Kabarak University Nakuru, Kenya:  July 2023.
•    Attended a CDC-IMU Project on Enhancing Quality and Internationalization of Mathematics Doctoral Supervision at Moi University, Eldoret, Kenya: November 2022.
•    Attended a Sensitization Workshop for Integrity Agents at Kisii University, Kisii, Kenya: June, 2019.
•    Attended First College of Pure and Applied Sciences International Conference at Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya: June, 2017.
7.      Classes taught:    •    Postgraduate Units; Nonparametric methods, sample surveys
•    Undergraduate Units; Applied linear regression, Bayesian Inference and Methods, Probability and statistics I, Probability Theory, Statistics I,

      Other relevant links:   

On LinkedIn, ResearchGate, Google scholar, etc.

  Official Contact Details:   
Email: hondicho@kisiiuniversity.ac.ke

•     Doctor -STATISTICS
•    SCHOOL OF PURE & APPLIED SCIENCES
•    DEPARTMENT OF MATHEMATICS & ACTUARIAL SCIENCE

      Biography:   

Robert N. Nyabwanga, Ph.D, is a lecturer of Statistics in the Department of Mathematics and Actuarial Science at Kisii University. He received his PhD in statistics from Maseno University. Prior to joining Kisii University, he was a lecturer of Statistics at the Catholic University of Eastern Africa  (CUEA). Dr. Nyabwanga has many years of teaching experience at the university level and has taught graduate and undergraduate courses including statistical inference, linear and non-linear modeling, survey sampling, multivariate methods, time series modeling and forecasting, and stochastic processes. His research interests include Statistical methodology and applications focusing on resolving issues with high-dimensional data,  generalized linear modeling especially the traditional and modern approaches to select variables from a large candidate set in Partial linear models, GEE, and GLMM, and the development of corresponding asymptotic properties; Controlled randomized trials’ research; Development of new procedures to model correlated observations to capture the time-varying effect with a focus on selecting appropriate correlation structure and covariates for the mean structure; Time series modeling of univariate and multivariate data with short-term and long-term memory behaviors as well as the development of multivariate time-series modeling techniques; and Use of Mathematics and Statistics in Predicting and Controlling Diseases.

      Academic Qualifications:   

    PhD in Statistics – Maseno University, Kenya (2021)
Thesis Title: Model Selection in Generalized Estimating Equations based on Kullback's I-divergence
    MSC in Applied Statistics- Maseno University(2014)
Thesis Title: “Application of  Seasonal ARIMA to Model and Forecast Water Demand in Kisumu City, Kenya”
    MBA (Finance) – Egerton University, Kenya (2011)
Thesis Title: “An assessment of the effect of working capital management practices on financial performance. A study of SMEs in Kisii South District, Kenya”
    Bachelor Of Education Degree. Second Class Honors Upper Division- Moi University, Kenya, 2000
    KCSE Certificate, KNEC -1994
    KCPE Certificate, KNEC -1990
      Research Interests:   

•    Statistical methodology and applications focusing on resolving issues with high-dimensional data.  I am interested in generalized linear modeling especially the traditional and modern approaches to select variables from a large candidate set in partial linear models, GEE, and GLMM, and the development of corresponding asymptotic properties.
•    Controlled randomized trials’ research as a basis for policy formulation and evaluation of existing interventions.
•    Development of new procedures to model correlated observations to capture the time-varying effect, focusing on selecting appropriate correlation structure and covariates for the mean structure.
•    Time series modeling of univariate and multivariate data with short-term and long-term memory behaviors as well as the development of multivariate time-series modeling techniques.
•    Use of Mathematics and Statistics in Predicting and Controlling Diseases
      Publications:   

1.    Nyabwanga Robert Nyamao (2024). Hybrid Methodology for Sparse Selection of Generalized Estimating Equations Model for the Drivers of Firm Value. Electronic Journal of Statistical Analysis. vol. 17 (1): 153-171.
DOI: 10.1285/i20705948v17n1p153
2.    Makambi A. Monari F.  Nyabwanga R. and Ondieki A. (2022). Imputation methods on Hardy Weinberg equilibrium for missing genome-wide expression data. International Journal of Applied Statistics and Mathematics, 7(5): 114-124
3.    Nyabwanga, Robert Nyamao, Onyango Fredrick & Edgar Otumba Ouko(2019). Consistency Inference property of QIC in the Selection of the true Correlation Structure in GEE,, American Journal of Theoretical and Applied Statistics.Vol. 48,  2019
DOI: 10.11648/j.ajtas.20190802.14
4.    Nyabwanga, Robert Nyamao, Onyango Fredrick & Edgar Otumba Ouko(2019). Inference properties of QIC in the selection of Covariates for Generalized Estimating Equations. International Mathematical Forum. Vol. 14, 2019, no. 4, 149 – 157 HIKARI Ltd, www.m-hikari.com
https://doi.org/10.12988/imf.2019.9315.
5.    Nyabwanga, Robert Nyamao & Edgar Otumba Ouko(2016). Application of Seasonal ARIMA to Model and Forecast Water Demand in Kisumu City, Kenya, International Journal of Ecological Economics and Statistics. Vol. 37, Issue 3, 2016. Ceser publications.
6.     Nyabwanga, Robert Nyamao, Edgar Ouko Otumba, Fredrick Onyango and Simeyo Otieno (2015). Statistical Trend Analysis of Residential water Demand in Kisumu City, Kenya. American Journal of Theoretical and Applied Statistics. 2015; 4(3): 112-117.
http://doi: 10.11648/j.ajtas.20150403.16.
7.    Tinega Lk Richard, Dr.Kahiri MK James and Nyabwanga Robert Nyamao (2016). A Combined Approach on Measurement Errors, Linear Regression Estimates and Variance of the Population Total. International Journal of Social Science and Technology Vol. 1 No. 2; November 2016
8.    Simeyo Otieno, Dr. Edgar Ouko Otumba and Nyabwanga, Robert Nyamao (2015). Application Of Markov Chain to Model and Forecast Stock Market Trend: A Study of Safaricom Shares in Nairobi Securities Exchange, Kenya. International Journal of Current Research Vol. 7, Issue, 04, pp.14712-14721, April, 2015
9.    Nyabwanga, Robert Nyamao  (2014). A Multiplicative Autoregressive Integrated Moving Average Model for Kenya’s Inflation (2000 – 2013).  Science Journal of Applied Mathematics and Statistics 2014; 2(6): 122-129. doi: 10.11648/j.sjams.20140206.14.
10.    Nyabwanga, Robert Nyamao, Dr. Ojera Patrick, Otieno Simeyo and Nyakundi Finlay Nyanyuki (2013). An Empirical Analysis of the Liquidity, Solvency and Financial Health of Small and Medium Sized Enterprises in Kisii Municipality, Kenya. European Journal of Business and Management. Vol.5, No.8, 2013.
11.    Nyabwanga Robert Nyamao, Ojera Patrick, Lumumba Martin, Alphonce J. Odondo and Otieno Simeyo (2012). Effect of working capital management practices on financial performance: A study of small scale enterprises in Kisii south district, Kenya. African Journal of Business Management Vol.6 (18), pp. 5807-5817, 9 May 2012
12.    Nyabwanga Robert Nyamao and Ojera Patrick (2012).  Inventory Management Practices and Business Performance for Small-Scale Enterprises in Kenya. KJBM Vol.4 Issue No.1, November, 2012, Pg. 11-28.  available online on AJOL
13.    Nyakundi Nyanyuki; Prof. Charles Okioga; Prof. Patrick Ojera; Nyabwanga Robert Nyamao and Tom Onsare Nyamwamu (2012). An Assessment of the Effect of Accounting Practices on the Management of Funds in Public Secondary Schools: A Study of Kisii Central District, Kenya. Asian Journal of Business and Management Sciences ISSN: 2047-2528 Vol. 2 No. 8 [34-50]
14.    George Ndemo Ochoti,  Dr. Elijah Maronga,  Dr. Stephen Muathe, Nyabwanga Robert Nyamao and Peter Kibet Ronoh (2012).  Factors Influencing Employee Performance Appraisal System: A case of the Ministry of State for Provincial Administration & Internal Security, Kenya.  International Journal of Business and Social Science, Vol. 3, No. 20, October 2012, Pg 37-46 (Special Issue on Current Trends in Social Science)
15.    Otieno Simeyo, Lumumba Martin, Nyabwanga R. Nyamao, Ojera Patrick and Alphonce J. Odondo (2011). Effect of provision of microfinance on the performance of micro-enterprises: A study of youth microenterprises under Kenya Rural Enterprise Program (K-REP), Kisii County, Kenya.  African Journal of Business Management Vol. 5(20), pp. 8290-8300, 16 September, 2011.
 7.      Classes you teach:    •    MSC in Mathematical Statistics
Linear Models, Time series  Analysis, and Stochastic Processes
•    BSC in Applied Statistics
Sampling Theory, Applied Statistical Methods; Probability and Statistics; Operations Research, Applied Time-series Analysis and forecasting, and Design and Analysis of Experiments

      Other relevant links:   

1.    https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=robert+nyabwanga&oq=ro
2.    webofscience.com

  Official Contact Details:   

rnyamao@kisiiuniversity.ac.ke

•    Doctor of Philosophy in Actuarial Science
•    Department of Mathematics and Actuarial Science.

      Biography:   

Dr. Onchere has over 10 years teaching and research experience in actuarial science and statistics. Having worked at the Technical University of Kenya as a part-time lecturer and Kisii University from being a tutorial fellow to a full time lecturer. He has taught actuarial and statistics students from degree, masters and PhD levels. Currently, he is the thematic head actuarial section and has supervised students presenting product design competitions to national level. Dr Onchere is a member of The Actuarial Society of Kenya that has proposed various changes in the insurance sector in Kenya most recently the proposed increase in contributions of NSSF and SHIF.  

      Academic Qualifications:   

Doctor of philosophy in actuarial science, 2022, University of Nairobi, Shared compound frailty model with application injoint life annuity insurance.

Master of science in actuarial science, 2013, University of Nairobi, Frailty model with application in pension schemes.

Bachelor’s degree in actuarial science (first class honors), 2011, Jomo Kenyatta University of Agriculture and Technology

KCSE (A-), 2005, Uasin Gishu High School

      Research Interests:   

• Frailty and copulas modelling accounts for unobserved heterogeneity and dependence applied in pricing insurance products. This enables better pricing in light of uncertainty. Research received partial funding from APHREA-DST Project.
• Frailty and Copulas Modeling –Collaborative research with Prof Weke (UoN), Prof Caro Ogutu, (UoN). Dr. Calvin Maina (KSU) and Dr. Fred Monari (KSU)

      Publications:  
Non-central gamma frailty with application to life-term assurance data (2021). Advances and applications in statistics. http://dx.doi.org/10.17654/AS067020237

Shared frailty model with application in joint-life annuity insurance data (2021). Advances and applications in statistics. http://dx.doi.org/10.17654/AS068010023

A Positive Stable Approach in the Construction of Dependence Life-tables (2021). Open Journal of Statistics 11 Pages 506-52. https://doi.org/10.4236/ojs.2021.114032

Graduation of term assurance data using frailty approach (2021). Afrika Statistika. Vol 16(3),2021, pp. 2807-2816. dx.doi.org

    Conference: IPMS-APREA Scientific Workshop – July 2022
Compound Joint-life annuity frailty modeling (2022). Afrika Statistika Vol. 17 (2), 2022, pages 3199 - 3216. doi.org

    Conference: 1ST School of Business and Economics (SOBE) International Conference. (Sep 2023)
Gumbel Copula Mortality Dependence Modeling (2023) Vol. 10 (1), 2023, pages 1383 - 1397.
DOI: http://dx.doi.org/10.16929/ajas/2023.1382.273

   Classes  taught:   

Degree in Applied Statistics
Degree in Actuarial Science (currently)
Master in Mathematical Statistics (currently)
PhD in Mathematical Statistics (currently)

  Other relevant links:   

https://ke.linkedin.com/in/dr-walter-onchere-phd-8876663a
https://www.researchgate.net/profile/Walter-Onchere
https://scholar.google.com/citations?user=Z64wY1wAAAAJ&hl=en

  Official Contact Details:   

wonchere@kisiiuniversity.ac.ke