not-at-ICTP

AbstractThe paper deals with existence, uniqueness and iterative approximation of solutions to boundary value problems for second-order differential equations on…

AbstractThe continuation theorem for contractive mappings on spaces endowed with two metrics is used to obtain existence, uniqueness and iterative…

AbstractWe develop continuation technique to obtain periodic solutions for superlinear planar differential systems of first order with impulses. Our approach…

Abstract The paper is devoted to the study of the neutral differential equation with delay \(x^{\prime}(t)=f(t,x\left( t\right) ,(\theta \left(t\right) ),x^{\prime}(\theta…

Abstract Monotone technique is used to approximate the periodic solutions of a delay integral equation modeling epidemics and population growth.…

Abstract ?? AuthorsRadu Precup Faculthy of Mathematics and Computer Science “Babes-Bolyai” University, Cluj-Napoca, Romania KeywordsPaper coordinatesR. Precup, Existence and approximation…

Abstract Continuation methods of Leray-Schauder type represent an important tool in the theory of differential and integral equations. Roughly speaking,…

AbstractIn this paper we prove some continuation theorems for mappings of Caristi type. Our results generalize Caristi’s fixed point theorem…

Abstract?? AuthorsRadu Precup Babeş-Bolyai University, Department of Mathematics, Cluj-Napoca, Romania KeywordsFixed point in cones; α-a-set contractions; weak inwardness; continuation theorem;…

Abstract Let \(G\) be a bounded open subset of a Banach space \(X\) with \(0\in G\) and let \(f\) be…