The fractional differential equations involving different types of fractional derivatives are
currently used in many fields of science and engineering. Therefore, the first purpose of this …

The present paper introduces a new class of generalized differential and integral operators.
This class includes and generalizes a large number of definitions of fractal-fractional …

It is undeniable that HIV infection has been a censorious public health concern over the past
four decades. It is reported that HIV is the main reason for AIDs which has decimated the …

This paper deals with a mathematical model for HTLV-I infection by considering the role of
imprecise essence of the biological parameters. The considered imprecise biologically …

This study develops a new definition of a fractional derivative that mixes the definitions of
fractional derivatives with singular and non-singular kernels. This developed definition …

In this study, a deterministic mathematical model that explains the transmission dynamics of
corruption is proposed and analyzed by considering social influence on honest individuals …

The occurrence of a new strain of SARS‐CoV‐2 cannot be ruled out. Therefore, this study
seeks to investigate the possible effects of a hypothetical imperfect anti‐COVID‐19 vaccine …

In this paper, we construct a general four-dimensional delayed HIV infection model with
virus-to-cell infection, cell-to-cell transmission, CTL immune response and parameter …

Optical and photo-thermal effects have emerged in many fields, including thermal
characterization, spectroscopy, transportation, and non-destructive examinations. In this …

In this paper, we analyze the fractional compartmental model in the sense of Caputo
derivative for the dynamics of the novel human papillomavirus, which causes cervical …