Epidemiology is the glorious discipline underlying medical research, public health practice,
and health care evaluation. Nowadays, research on disease models with anonymous …

Abstract The Lotka‐Volterra model is a very famous model and frequently used to describe
the dynamics of ecological systems in which two species interact, one a predator and one its …

The preeminent target of present study is to reveal the speed characteristic of ongoing
outbreak COVID‐19 due to novel coronavirus. On January 2020, the novel coronavirus …

This article presents a numerical method for solving nonlinear two-dimensional Volterra–
Fredholm integro-differential equations of the second kind. Here, we use the so-called two …

In this work, space-time fractal model about nonlinear KdV-Burgers–Kuramoto (NKBK)
equation which describes nonlinear physical phenomena and involves instability …

The HIV infection model of CD4+ T-cells corresponds to a class of nonlinear ordinary
differential equation systems. In this study, we provide the approximate solution of this model …

In this work, we construct two numerical approximations methods to deal with
approximations of a linear Fredholm integro-differential equation. In order to show the …

The fractional Black–Scholes pricing model widely appears in financial markets. This paper
presents the special class of operational matrix to approximate the solution of fractional …

The main aim of this paper is to use two-dimensional Bernoulli wavelet for obtaining the
numerical solution of a nonlinear two-dimensional fractional partial Volterra integral …

A collocation scheme is applied to give an approximate solution of the fractional optimal
control problems with delays in state and control. The operational matrix of fractional …