Publications & talks

Research in print and
in conversation.

My publication record spans mathematical epidemiology, functional analysis, and optimization. The talks show how the disease-dynamics work has developed from endemic-equilibrium structure toward movement and persistence.

01

Peer-reviewed journal articles

Three published articles.

  1. 2026

    Complex structure in the endemic equilibrium set of an SIS epidemic patch model with the mass-action infection mechanism

    R. B. Salako & K. C. Ukandu · SIAM Journal on Applied Mathematics, 86(2), 644–674.

    doi:10.1137/25M1732532 (opens in a new tab)
  2. 2025

    Inertial forward-reflected-backward method for solving bilevel variational inequality problem

    K. O. Okorie, C. Izuchukwu, C. C. Okeke, K. C. Ukandu & M. Aphane · Results in Applied Mathematics, 28, 100658.

    doi:10.1016/j.rinam.2025.100658 (opens in a new tab)
  3. 2022

    Inertial method for split null point problems with pseudomonotone variational inequality problems

    C. C. Okeke, A. U. Bello, L. O. Jolaoso & K. C. Ukandu · Numerical Algebra, Control and Optimization, 12(4), 815–836.

    doi:10.3934/naco.2021037 (opens in a new tab)
02

Manuscripts under review

Work in the review process.

Both items remain under journal review. Status checked August 2026.

Manuscript under journal review · status checked August 2026

A two-step inertial forward-reflected-anchored-backward method for solving a bilevel variational inequality problem

K. O. Okorie, C. C. Okeke, A. E. Ofem & K. C. Ukandu

Under review at Mathematical Methods in the Applied Sciences (Wiley).

Manuscript under journal review · status checked August 2026

Multiple output set with inertial and correction term for split feasibility problems

C. C. Okeke, K. O. Okorie, M. S. Kanyane, A. Ofem & K. C. Ukandu

Under review at Boletín de la Sociedad Matemática Mexicana (Springer).

03

Presentations & seminars

The research developing in public.

The sequence moves from the structure of endemic equilibria to susceptible-population movement and, most recently, the broader persistence question in SIS network models.

Kingsley presenting his SIS epidemic network research beside a projected presentation slide
Work in motion · ICM@ICM 2026Kingsley presenting “Population Movement and Endemic Persistence in SIS Epidemic Network Models” at Morgan State University.
  1. June 2026

    ICM@ICM 2026 · Morgan State University

    Population Movement and Endemic Persistence in SIS Epidemic Network Models

    Oral presentation at the ICM 2026 Satellite Conference on numerical analysis and scientific computing.

    Conference abstracts (opens in a new tab)
  2. December 2025

    UNLV Seminar on Partial Differential Equations and Related Topics

    Effects of Population Movement on the Long-Term Dynamics of Infectious Diseases in SIS Epidemic Network Models: A Mathematical Perspective

    A seminar presentation connecting the dissertation problem, movement, and long-term dynamics.

  3. March 2025

    American Mathematical Society · Spring Central Sectional Meeting

    New Spatial Patterns of Endemic Equilibria Set in an SIS Epidemic Patch Model: Effects of Susceptible Population Movement

    Coauthored with Rachidi B. Salako; oral presentation by Kingsley Chimuanya Ukandu.

    AMS abstract (opens in a new tab)
  4. September 2024

    American Mathematical Society · Fall Central Sectional Meeting

    Structure of the Endemic Equilibria Set of an Epidemic Network Model as the Dispersal Rate of the Susceptible Population Varies

    Coauthored with Rachidi B. Salako; oral presentation by Kingsley Chimuanya Ukandu.

    AMS abstract (opens in a new tab)