Publications

Olusegun M. Otunuga

Journal Publications

  1. Otunuga, O. M. (2026). From Outbreak to Endemicity or Control: Tracking First Passage Time in Infectious Diseases. Bulletin of Mathematical Biology, 88:68. DOI PDF
  2. Otunuga, O. M. (2026). Statistical Analysis of Stationary and Transition Probability Densities for Atmospheric Forcing in a Climate Change Model. Stochastic Environmental Research and Risk Assessment, 40:22. DOI PDF
  3. Otunuga, O. M. (2025). Stochastic Modeling and First-Passage-Time Analysis of Oncological Time Metrics with Dynamic Tumor Barriers. Scientific Reports, 15, 14941. DOI PDF
  4. Otunuga, O. M. (2024). Transition probability density function for number of infections in a population satisfying a stochastic SIS-epidemic model. Applied Mathematical Analysis and Computations II. DOI PDF
  5. Otunuga, O. M. (2024). Tumor growth and population modeling in a toxicant-stressed random environment. Journal of Mathematical Biology, 88:18. DOI PDF
  6. Otunuga, O. M. (2024). Analysis of the impact of treatments on HIV/AIDS and Tuberculosis co-infected population under random perturbations. Infectious Disease Modelling, 9(1), 27–55. DOI PDF
  7. Otunuga, O. M., Alexandra Yu (2023). Vaccine breakthrough and rebound infections modeling: Analysis for the United States and the ten U.S. HHS regions. Infectious Disease Modelling, 8(3), 717–741. DOI PDF
  8. Peter O.J., Panigoro, H.S., Ibrahim M.A., Otunuga, O. M., Ayoola T. A., Oladapo A. O. (2023). Analysis and dynamics of measles with control strategies: a mathematical modeling approach. International Journal of Dynamics and Control, 11, 2538–2552. DOI PDF
  9. Yemba, B.P., Otunuga, O. M., Tang B., Biswas N. (2023). Nowcasting of Short-Run Euro-Dollar Exchange Rate with Economic Fundamentals and Time-Varying Parameters. Finance Research Letters, 52. DOI PDF
  10. Otunuga, O. M. (2022). Stochastic modeling and forecasting of Covid-19 deaths: Analysis for the fifty states in the United States. Acta Biotheoretica, 70:25. DOI PDF
  11. Otunuga, O. M. (2022). Analysis of multi-strain infection of vaccinated and recovered population through epidemic model: Application to COVID-19. PLOS ONE, 17(7), e0271446. DOI PDF
  12. Otunuga, O. M. (2021). Estimation of epidemiological parameters for COVID-19 cases using a stochastic SEIRS epidemic model with vital dynamics. Results in Physics, 28, 104664. DOI PDF
  13. Otunuga, O. M. (2021). Time-dependent probability distribution for number of infection in a stochastic SIS model: case study COVID-19. Chaos, Solitons & Fractals, 147, 110983. DOI PDF
  14. Otunuga, O. M. (2021). Time-dependent probability density function for general stochastic logistic population model with harvesting effort. Physica A, 573, 125931. DOI PDF
  15. Otunuga, O. M., Ladde G.S. (2020). Two-Scale Network Dynamic Model for Energy Commodity Processes. Journal of Energy. DOI PDF
  16. Otunuga, O. M., Ogunsolu M. (2020). Qualitative analysis of a stochastic SEITR epidemic model with multiple stages of infection and treatment. Infectious Disease Modelling, 5, 61–90. DOI PDF
  17. Otunuga, O. M. (2019). Closed-form probability distribution of number of infections at a given time in a stochastic SIS epidemic model. Heliyon, 5(9). DOI PDF
  18. Mummert, A., Otunuga, O. M. (2019). Parameter identification for a stochastic SEIRS epidemic model: case study influenza. Journal of Mathematical Biology, 79(2), 705–729. DOI PDF
  19. Otunuga, O. M.,Ladde G.S., Ladde, N (2019). Local Lagged Adapted Generalized Method of Moments: An Innovative Estimation and Forecasting Approach and its Applications. Journal of Time Series Econometrics. DOI PDF
  20. Otunuga, O. M. (2018). Global stability for a (2n+1)-dimensional HIV/AIDS epidemic model with treatments. Mathematical Biosciences, 299, 138–152. DOI PDF
  21. Otunuga, O. M. (2017). Time varying parameter estimation scheme for a linear stochastic differential equation. International Journal of Statistics and Probability, 6(5), 84–100. DOI PDF
  22. Otunuga, O. M. (2017). Global Stability of Nonlinear Stochastic SEI Epidemic Model. International Journal of Stochastic Analysis. DOI PDF
  23. Otunuga, O. M.,Ladde G.S., Ladde, N (2016). Local Lagged Adapted Generalized Method of Moments and Applications. Stochastic Analysis and Applications, 35(1), 1–34. DOI PDF
  24. Otunuga, O. M. (2014). Second Order State and Covariance Estimation for Nonlinear Stochastic Systems. Journal of Neural, Parallel and Scientific Computation, 22, 89–126. DOI PDF
  25. Otunuga, O. M. (2014). Stochastic Modeling of Energy Commodity Spot Price Processes with Delay in Volatility. American International Journal of Contemporary Research, 4(5), 1–20. DOI PDF
  26. Otunuga, O. M. (2014). Positive Solutions of Boundary Value Dynamic Equations. American Review of Mathematics and Statistics, 2(2), 1–16. DOI PDF