TITLE (PROF/DR/): DR.

NAME: EHIGIE, JULIUS OSATO

POSITION: ASSOCIATE PROFESSOR      SPECIALISATION: Computational and Applied Mathematics

EDUCATION/TRAINING (Begin with Bachelor’s degree or other initial professional education, such as nursing, include postdoctoral training and residency training if applicable. Add/delete rows as necessary.)

1. Personal Statement

 My research interests are in the field of computational and applied mathematics, with a particular focus on computational mathematics and scientific computing. My work involves the development, analysis, and implementation of fast and high-order accurate numerical methods for solving periodic and oscillatory initial value problems. I specialize in deriving advanced time integration schemes, such as Runge-Kutta methods, for the efficient simulation of ordinary and partial differential equations, as well as computing numerical solutions to fractional partial differential equations. I have actively contributed to the field of applied mathematics through collaborative research on a range of complex problems, including genetic regulatory systems, celestial mechanics, nonlinear forced vibrations, and nonlinear atomic vibrations. My current research interests extend to numerical simulation of air pollution tracking models, nonlinear waves and dynamics of biological systems.

Positions, Scientific Appointments, and Honours

• Departmental Postgraduate Coordinator
• Founder, Numerical Analysis Research Clusters
• Winner, APSA Fellowship Awards 2025
• IMU-Simons African Fellowship Scholar 2022
• EMS-Simons for Africa Scholar 2019
• NAU-Postdoctor Fellowship Scholar 2015

 Selected Most Recent Publications /Contributions to Knowledge 

1. Luan V. T., Van Hoang N., Ehigie J. O. (2024). Efficient exponential methods for genetic regulatory systems. Journal of Computational and Applied Mathematics, 436, 115424.
2. Oyelade A. O., Ehigie J. O., Orolu K., Oyediran A. O. (2024).  Dynamics of horizontal pipes conveying two phase flow with nonlinear boundary conditions. Mechanical Systems and Signal Processing, 217, 11520.
3. Surulere S. A., Shatalov M. Y., Ehigie J. O. (2023). Analysis of oscillations in 1D nanostructures influenced by different concrete potential functions. International Journal of Non-Linear Mechanics, 148, 104307.
4. Ehigie J. O., Luan V. T., Okunuga S. A., You X. (2022). Exponentially fitted two-derivative DIRK methods for oscillatory differential equations. Applied Mathematics and Computation. 418, 126770.
5. Surulere S. A., Shatalov M. Y., Ehigie J. O., Adeniji A. A., Fedotov I. A (2022). Nonlinear interactions in nanolattices described by the classical Morse, Biswas-Hamann and modified Lennard-Jones potentials. Russian Journal of Nonlinear Dynamics. 18(2), 183-201    Collaborators/ Networks 

1. Department of Civil and Environmental Engineering, University of Lagos
2. Department of Mathematics, Southern Methodist University, USA

• Department of Mathematics, University of Oxford, UK

1. Department of Applied Mathematics, Nanjing Agricultural University, China
2. Department of Mathematics, Texas Tech University, TX, USA