Results 71 to 80 of about 775 (171)

Existence and uniqueness of positive solutions for the periodic BVPs of a class of first-order ordinary differential systems

四川大学学报. 自然科学版, 2022
In this paper, we study the existence and uniqueness of positive solutions for the periodic boundary value problems of a class of first order ordinary differential equations.
HE Ting
doaj  

Existence and uniqueness of Solution for Boundary Value Problem of Fractional Order

Tikrit Journal of Pure Science
In this study, we investigate a class of fractional ordering and fractional derivative-based boundary value problems.   and . There are four boundary value requirements in this equation.
Hozan Hilmi, Rebaz Fadhil Mahmood, Siyaman Sidiq Hama   +2 more
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Almost-periodic solution for BAM neural networks [PDF]

Surveys in Mathematics and its Applications, 2009
In this paper, we study the existence and uniqueness solution and investigate the conditions that make it almost-periodic solution for BAM neural networks with retarded delays.
Hamid A. Jalab, Rabha W. Ibrahim
doaj  

Some Generalizations of Mulit-Valued Version of Schauder’s Fixed Point Theorem with Applications [PDF]

Cubo (Temuco), 2010
Let \(E\) be a Banach space and \(\mu \) an axiomatically defined measure of noncompactness in \(E\). The following theorem is the main result of this paper: Let \(X\) be a closed, convex and bounded subset of \(E\) and \(Q:X\to 2^X\) a multi-valued mapping with closed graph and convex values.
openaire   +4 more sources

Multiple positive solutions for integro-differential equations with integral boundary conditions and sign changing nonlinearities

Electronic Journal of Differential Equations, 2012
In this article, we show the existence of multiple positive solutions for integro-differential equations with one-dimensional p-Laplacian operator, sign changing nonlinearities, and integral boundary conditions.
Mei Jia, Pingyou Wang
doaj  

On the Nonhomogeneous Fourth-Order p-Laplacian Generalized Sturm-Liouville Nonlocal Boundary Value Problems

Discrete Dynamics in Nature and Society, 2012
We study the nonlinear nonhomogeneous n-point generalized Sturm-Liouville fourth-order p-Laplacian boundary value problem by using Leray-Schauder nonlinear alternative and Leggett-Williams fixed-point theorem.
Jian Liu, Zengqin Zhao
doaj   +1 more source

Generalizations of F. E. Browder's sharpened form of the schauder fixed point theorem [PDF]

Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1987
AbstractLet E be a Hausdorff topological vector space, let K be a nonempty compact convex subset of E and let f, g: K → 2E be upper semicontinuous such that for each x ∈ K, f(x) and g(x) are nonempty compact convex. Let Ω ⊂ 2E be convex and contain all sets of the form x − f(x), y − x + g(x) − f(x), for x, y ∈ K.
openaire   +2 more sources

Periodic Solutions and Nontrivial Periodic Solutions for a Class of Rayleigh-Type Equation with Two Deviating Arguments

Journal of Function Spaces and Applications, 2013
The Rayleigh equation with two deviating arguments x′′(t)+f(x'(t))+g1(t,x(t-τ1(t)))+g2(t,x(t-τ2(t)))=e(t) is studied. By using Leray-Schauder index theorem and Leray-Schauder fixed point theorem, we obtain some new results on the existence of periodic ...
Meiqiang Feng
doaj   +1 more source

Existence of Solutions for Some Nonlinear Problems with Boundary Value Conditions

Abstract and Applied Analysis, 2016
We study the existence of solutions for nonlinear boundary value problems φu′′=ft,u,u′,  lu,u′=0, where l(u,u′)=0 denotes the boundary conditions on a compact interval 0,T, φ is a homeomorphism such that φ(0)=0, and f:0,T×R×R→R is a continuous function ...
Dionicio Pastor Dallos Santos
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Existence Results for Fractional Hahn Difference and Fractional Hahn Integral Boundary Value Problems

Discrete Dynamics in Nature and Society, 2017
The existence and uniqueness results of two fractional Hahn difference boundary value problems are studied. The first problem is a Riemann-Liouville fractional Hahn difference boundary value problem for fractional Hahn integrodifference equations.
Nichaphat Patanarapeelert, Thanin Sitthiwirattham   +1 more
doaj   +1 more source