Contemporary Mathematics, Volume 2 Issue 1 (2021), 1-102



Open Access Article

Some Generalizations of Jensen's Inequality

by Slavko Simic, Bandar Almohsen

ABSTRACT: In this article, we give some improvements and generalizations of the famous Jensen's and Jensen-Mercer inequalities for twice differentiable functions, where convexity property of the target...

Open Access Article

The Polypermutation Group of an Associative Ring

by Jason K. C. Polak

ABSTRACT: We study permutation polynomials through the device of the polypermutation group of an associative ring R , denoted by Pgr( R ). We derive some basic properties and compute the cardinality of...

Open Access Article

On the P-Adic Valuations of Stirling Numbers of the Second Kind

by S. S. Singh, A. Lalchhuangliana, P. K. Saikia

ABSTRACT:

Open Access Article

Asymptotic Behavior of Positive Solutions to a Nonlinear Elliptic Coupled System on an Exterior Domain

by Habib Mâagli, Zagharide Zine El Abidine

ABSTRACT:

Open Access Article

A Mathematical Model for the Study of Effectiveness in Therapy in Tuberculosis Taking into Account Associated Diseases

by Erick Delgado Moya, Alain Pietrus, Sergio Muniz Oliva

ABSTRACT: Tuberculosis (TB) remains a major global health problem. We present a deterministic mathematical model for the study of the effectiveness of therapy in TB to determine the impact of HIV/AIDS and...