Add to ORKGAbstract. In this paper, we study positive periodic solutions to singular second order differential systems. It is proved that such a problem has at least two positive periodic solutions. The proof relies on a nonlinear alter-native of Leray–Schauder type and on Krasnosel’skĭı fixed point theorem on compression and expansion of cones
AbstractBy employing the Deimling fixed point index theory, we consider a class of second-order nonl...
Abstract In this paper, we investigate the existence of positive solutions for a class of singular s...
We study the existence of positive solutions for second-order nonlinear differential equations with ...
In this paper, we study positive periodic solutions to singular second order differential systems. I...
In this paper, we study positive periodic solutions to singular second order differential systems....
AbstractIn this work, we have obtained existence results for single and multiple positive periodic s...
AbstractThe existence and multiplicity of positive solutions are established to periodic boundary va...
In this paper, we study the existence of positive periodic solutions to the equation x" = f (t,...
Abstract Using the fixed point theorem, we study the existence and multiplicity of positive periodic...
In this paper, we study the existence of positive periodic solutions to the equation x" = f (t,...
This article studies the existence of positive periodic solutions for a class of strongly coupled di...
We study the existence of a positive periodic solution for second-order singular semipositone differ...
We study the existence of a positive periodic solution for second-order singular semipositone differ...
AbstractThis paper investigates the existence of positive solutions for a second-order differential ...
In this work, we consider two types of second-order neutral differential equations and we obtain suf...
AbstractBy employing the Deimling fixed point index theory, we consider a class of second-order nonl...
Abstract In this paper, we investigate the existence of positive solutions for a class of singular s...
We study the existence of positive solutions for second-order nonlinear differential equations with ...
In this paper, we study positive periodic solutions to singular second order differential systems. I...
In this paper, we study positive periodic solutions to singular second order differential systems....
AbstractIn this work, we have obtained existence results for single and multiple positive periodic s...
AbstractThe existence and multiplicity of positive solutions are established to periodic boundary va...
In this paper, we study the existence of positive periodic solutions to the equation x" = f (t,...
Abstract Using the fixed point theorem, we study the existence and multiplicity of positive periodic...
In this paper, we study the existence of positive periodic solutions to the equation x" = f (t,...
This article studies the existence of positive periodic solutions for a class of strongly coupled di...
We study the existence of a positive periodic solution for second-order singular semipositone differ...
We study the existence of a positive periodic solution for second-order singular semipositone differ...
AbstractThis paper investigates the existence of positive solutions for a second-order differential ...
In this work, we consider two types of second-order neutral differential equations and we obtain suf...
AbstractBy employing the Deimling fixed point index theory, we consider a class of second-order nonl...
Abstract In this paper, we investigate the existence of positive solutions for a class of singular s...
We study the existence of positive solutions for second-order nonlinear differential equations with ...