Integro-Differential Equation with two time lags
Abstract We consider an integro-differential equation with two time lags and we prove the existence, uniqueness and convergence of the…
2012
On a D.V. Ionescu’s problem for functional-differential equations of second order
Abstract Abstract. The paper is devoted to the study of the following D.V. Ionescu’s problem \[ \left \{ \begin{array} [l]{l}%…
Logarithmic mean and weighted sum of geometric and anti-harmonic means
Abstract We consider the problem of finding the optimal values\U{3b1}, \(\U{3b2} \in R\) for which the inequality \(\U{3b1} G(a,b)+(1-\U{3b1} )C(a,b)<L(a,b)<\U{3b2}…
Solution localization for nonlinear problems: A variational approach
Abstract AuthorsRadu Precup Department of Mathematics, Babes-Bolyai University, Cluj-Napoca, Romania Keywords? Paper coordinatesR. Precup, Solution localization for nonlinear problems: A…
On q-Baskakov-Mastroianni operators
Abstract The aim of the paper is to investigate a qanalogue of a general class of linear positive operators defined…
A-statistical convergence of a class of integral operators
Abstract Starting from a general sequence of linear and positive operators of summation integral type, we associate its r-th order…
Statistical convergence of integral operators generated by a single kernel
Abstract We introduce a class of double-complex integral linear operators. Some geometric properties are investigated and a statistical approximation theorem…
Abstract weak Harnack inequality, multiple fixed points and p-Laplace equations
AbstractThis paper presents an abstract theory for the existence, localization and multiplicity of fixed points in a cone. The key…
Moser-Harnack inequality, Krasnoselskii type fixed point theorems in cones and elliptic problems
AbstractThe compression-expansion fixed point theorems of M. A. Krasnoselʹskiĭ have been extensively used as a basic tool for the existence…
Multiple positive solutions of non-local initial value problems for first order differential systems
AbstractThe paper gives a new and natural method for the existence of multiple positive solutions for first order differential systems…