Global Existence of Solutions to a System of Integral Equations Related to an Epidemic Model

Abstract

A system of integral equations related to an epidemic model is investigated. Namely, we derive sufficient conditions for the existence and uniqueness of global solutions to the considered system. The proof is based on Perov’s fixed point theorem and some integral inequalities.

An Investigation of an Integral Equation Involving Convex–Concave Nonlinearities

“…has been investigated using various fixed-point theorems. For more contributions related to generalized variants of (2), see, e.g., [14][15][16][17][18][19][20][21][22] and the references therein.…”