This research presents a new fractional-order discrete-time susceptible-infected-recovered
(SIR) epidemic model with vaccination. The dynamical behavior of the suggested model is …

This paper presents and investigates a new fractional discrete COVID-19 model which
involves three variables: the new daily cases, additional severe cases and deaths. Here, we …

Using the Caputo operator, a model for a fractional-order epidemic is developed to
investigate the fear effect in a pathogenic environment and vaccination procedure. First, we …

During the broadcast of Coronavirus across the globe, many mathematicians made several
mathematical models. This was, of course, in order to understand the forecast and behavior …

The aim of the current work is to provide the importance and significance of the fractional
order (FO) derivatives for solving the nonlinear water pollution model (FWP) model. The FO …

The current study presents the numerical solutions of the Wolbachia invasive model (WIM)
using the neural network Levenberg-Marquardt (NN-LM) backpropagation technique. The …

Infectious diseases are the major source of increasing death rate during recent years.
Among the infectious diseases, dengue fever is disseminated in more than hundred …

Fractal fractional derivative on chemistry kinetics hires problem Page 1 AIMS Mathematics, 7(1):
1155–1184. DOI: 10.3934/math.2022068 Received: 28 July 2021 Accepted: 21 September …

Abstract Introduction In December 2019, the city of Wuhan, located in the Hubei province of
China became the epicentre of an outbreak of a pandemic called COVID-19 by the World …

The current investigations of the COVID-19 spreading model are presented through the
artificial neuron networks (ANNs) with training of the Levenberg-Marquardt backpropagation …