In this paper, a tripled fractional differential system is introduced as three associated
impulsive equations. The existence investigation of the solution is based on contraction …

This paper aims to suggest a time-fractional SPEPIPAIPSPHPRP model of the COVID-19
pandemic disease in the sense of the Atangana–Baleanu–Caputo operator. The proposed …

Few studies have investigated the existence and uniqueness of solutions for fractional
differential equations on star graphs until now. The published papers on the topic are based …

A theory of chemical graphs is a part of mathematical chemistry concerned with the effects of
connectedness in chemical graphs. Several researchers have studied the solutions of …

A framework of distributed interval observers is introduced for fractional-order multiagent
systems in the presence of nonlinearity. First, a frame was designed to construct the upper …

The study of the interconnections between chemical systems is known as chemical graph
theory. Through the use of star graphs, a limited group of researchers has examined the …

Using Banach's contractive principle and the Laray–Schauder fixed point theorem, we study
the uniqueness and existence of solutions to a nonlinear two-term fractional integro …

Chemical graph theory (CGT) is a field of mathematical science that applies classical graph
theory to chemical structures and processes. Chemical graphs are the principal data format …

This article discusses several forms of Ulam stability of nonlinear fractional delay differential
equations. Our investigation is based on a generalised Gronwall's inequality and Picard …

This paper focuses on computational technique to solve linear systems of Volterra integro-
fractional differential equations (LSVIFDEs) in the Caputo sense for all fractional order lins in …