Qualitative analysis and numerical investigations of time-fractional Zika virus model arising in population dynamics

Fuente: arXiv
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Main Authors: Saini, Gaurav, Ghosh, Bappa, Chand, Sunita
Format: Preprint
Published: 2026
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author Saini, Gaurav
Ghosh, Bappa
Chand, Sunita
author_facet Saini, Gaurav
Ghosh, Bappa
Chand, Sunita
contents Epidemic models play a crucial role in population dynamics, offering valuable insights into disease transmission while aiding in epidemic prediction and control. In this paper, we analyze the mathematical model of the time-fractional Zika virus transmission for human and mosquito populations. The fractional derivative is considered in the Caputo sense of order $α\in(0,1).$ We begin by conducting a qualitative analysis using the stability theory of differential equations. The existence and uniqueness of the solution are established, and the model's stability is examined through Hyers-Ulam stability analysis. Furthermore, an efficient difference scheme utilizing the standard L1 technique is developed to simulate the model and analyze the solution's behavior under key parameters. The resulting nonlinear algebraic system is solved using the Newton-Raphson method. Finally, illustrative examples are presented to validate the theoretical findings. Graphical results indicate that the fractional model provides deeper insights and a better understanding of disease dynamics. These findings aid in controlling the virus through contact precautions and recommended therapies while also helping to predict its future spread.
format Preprint
id arxiv_https___arxiv_org_abs_2601_11636
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Qualitative analysis and numerical investigations of time-fractional Zika virus model arising in population dynamics
Saini, Gaurav
Ghosh, Bappa
Chand, Sunita
Dynamical Systems
Numerical Analysis
Populations and Evolution
26A33, 37M05, 92D25, 65L05
Epidemic models play a crucial role in population dynamics, offering valuable insights into disease transmission while aiding in epidemic prediction and control. In this paper, we analyze the mathematical model of the time-fractional Zika virus transmission for human and mosquito populations. The fractional derivative is considered in the Caputo sense of order $α\in(0,1).$ We begin by conducting a qualitative analysis using the stability theory of differential equations. The existence and uniqueness of the solution are established, and the model's stability is examined through Hyers-Ulam stability analysis. Furthermore, an efficient difference scheme utilizing the standard L1 technique is developed to simulate the model and analyze the solution's behavior under key parameters. The resulting nonlinear algebraic system is solved using the Newton-Raphson method. Finally, illustrative examples are presented to validate the theoretical findings. Graphical results indicate that the fractional model provides deeper insights and a better understanding of disease dynamics. These findings aid in controlling the virus through contact precautions and recommended therapies while also helping to predict its future spread.
title Qualitative analysis and numerical investigations of time-fractional Zika virus model arising in population dynamics
topic Dynamical Systems
Numerical Analysis
Populations and Evolution
26A33, 37M05, 92D25, 65L05
url https://arxiv.org/abs/2601.11636