Results 81 to 90 of about 490 (162)

On the Solutions of a Quadratic Integral Equation of the Urysohn Type of Fractional Variable Order. [PDF]

Entropy (Basel), 2022
Benkerrouche A, Souid MS, Stamov G, Stamova I.   +3 more
europepmc   +1 more source

Solutions to nonlocal fractional differential equations using a noncompact semigroup

Electronic Journal of Differential Equations, 2013
This article concerns the existence of solutions to nonlocal fractional differential equations in Banach spaces. By using a type of newly-defined measure of noncompactness, we discuss this problem in general Banach spaces without any compactness ...
Shaochun Ji, Gang Li
doaj  

Topological Langmuir-cyclotron wave. [PDF]

Sci Adv, 2023
Qin H, Fu Y.
europepmc   +1 more source

Quasilinear nonlocal integrodifferential equations in Banach spaces

Electronic Journal of Differential Equations, 2008
In this paper, we study the existence of mild solutions for quasilinear integrodifferential equations with nonlocal conditions in Banach spaces. The results are established by using Hausdorff's measure of noncompactness.
Jin Zhang, Gang Li, Qixiang Dong
doaj  

Positive solutions of fractional integral equations by the technique of measure of noncompactness. [PDF]

J Inequal Appl, 2017
Nashine HK, Arab R, Agarwal RP, De la Sen M.   +3 more
europepmc   +1 more source

The Concept of Measures of Noncompactness in Banach Spaces

Symmetry
This article is a survey, and its aim is to provide a concise introduction to the topic of measures of noncompactness and measures of weak noncompactness in Banach spaces. These measures constitute a useful tool in nonlinear analysis, for example, in studies on the existence of solutions to nonlinear differential and integral equations.
openaire   +1 more source

Controllability of impulsive functional differential systems with nonlocal conditions

Electronic Journal of Differential Equations, 2013
In this article, we study the controllability of impulsive functional differential equations with nonlocal conditions. We establish sufficient conditions for controllability, via the measure of noncompactness and Monch fixed point theorem.
Yansheng Liu, Donal O'Regan
doaj  

[Formula: see text]-Contraction in terms of measure of noncompactness with application for nonlinear integral equations. [PDF]

J Inequal Appl, 2017
Nikbakhtsarvestani F, Vaezpour SM, Asadi M.   +2 more
europepmc   +1 more source

Analysis of the role of social support - cognitive psychology and emotional process approach. [PDF]

Eur J Transl Myol, 2020
Heydari M, Xiaohu Z, Saeidi M, Keung Lai K, Shang Y, Yuxi Z.   +5 more
europepmc   +1 more source

Existence of solutions for differential inclusions on closed moving constraints in Banach spaces

Electronic Journal of Differential Equations, 2009
In this paper, we prove the existence of solutions to a multivalued differential equation with moving constraints. We use a weak compactness type condition expressed in terms of a strong measure of noncompactness.
Adel Mahmoud Gomaa
doaj