Results 21 to 30 of about 97 (90)

On a nonlocal Cauchy problem for differential inclusions

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 5, Page 425-434, 2004., 2004
We establish sufficient conditions for the existence of solutions for semilinear differential inclusions, with nonlocal conditions. We rely on a fixed‐point theorem for contraction multivalued maps due to Covitz and Nadler andon the Schaefer′s fixed‐point theorem combined with lower semicontinuous multivalued operators with decomposable values.
E. Gatsori, S. K. Ntouyas, Y. G. Sficas
wiley   +1 more source

On the Decay of Solutions to a Class of Hartree Equations [PDF]

open access: yes, 2019
[Venkov George; Венков Георги]2010 Mathematics Subject Classification: 35Q55, 34G20 ...
Tarulli, Mirko, Venkov, George
core   +1 more source

Multivalued semilinear neutral functional differential equations with nonconvex‐valued right‐hand side

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 6, Page 525-541, 2004., 2004
We investigate the existence of mild solutions on acompact interval to some classes of semilinear neutral functional differential inclusions. We will rely on a fixed‐point theorem for contraction multivalued maps due to Covitz and Nadler and on Schaefer′s fixed‐point theorem combined with lower semicontinuous multivalued operators with decomposable ...
M. Benchohra, E. Gatsori, S. K. Ntouyas
wiley   +1 more source

On a nonlinear compactness lemma in Lp(0, T; B)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 27, Page 1725-1730, 2003., 2003
We consider a nonlinear counterpart of a compactness lemma of Simon (1987), which arises naturally in the study of doubly nonlinear equations of elliptic‐parabolic type. This paper was motivated by previous results of Simon (1987), recently sharpened by Amann (2000), in the linear setting, and by a nonlinear compactness argument of Alt and Luckhaus ...
Emmanuel Maitre
wiley   +1 more source

The Kneser property for abstract retarded functional differential equations with infinite delay

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 26, Page 1645-1661, 2003., 2003
We establish existence of mild solutions for a class of semilinear first‐order abstract retarded functional differential equations (ARFDEs) with infinite delay and we prove that the set consisting of mild solutions for this problem is connected in the space of continuous functions.
Hernán R. Henríquez
wiley   +1 more source

Existence of solutions and controllability of nonlinear integrodifferential systems in Banach spaces

open access: yesMathematical Problems in Engineering, Volume 2003, Issue 2, Page 65-79, 2003., 2003
We prove the existence of mild and strong solutions of integrodifferential equations with nonlocal conditions in Banach spaces. Further sufficient conditions for the controllability of integrodifferential systems are established. The results are obtained by using the Schauder fixed‐point theorem. Examples are provided to illustrate the theory.
K. Balachandran, J. Y. Park
wiley   +1 more source

Existence of solutions of Sobolev‐type semilinear mixed integrodifferential inclusions in Banach spaces

open access: yesInternational Journal of Stochastic Analysis, Volume 16, Issue 2, Page 163-170, 2003., 2003
The existence of mild solutions of Sobolev‐type semilinear mixed integrodifferential inclusions in Banach spaces is proved using a fixed point theorem for multivalued maps on locally convex topological spaces.
M. Kanakaraj, K. Balachandran
wiley   +1 more source

Existence of a Mild Solution to a Second-Order Impulsive Functional-Differential Equation with a Nonlocal Condition [PDF]

open access: yes, 2015
[Covachev Valéry; Ковачев Валери]; [Covacheva Zlatinka; Ковачева Златинка]An abstract second-order semilinear functional-differential equation such that the linear part of its right-hand side is given by the infinitesimal generator of a strongly ...
Akça, Haydar   +2 more
core   +1 more source

Existence and Ulam stability results for Hadamard partial fractional integral inclusions via Picard operators: Dedicated to Professor Ioan A. Rus on the occasion of his 80th anniversary

open access: yes, 2023
In this paper, by using the weakly Picard operators theory, we investigate some existence and Ulam type stability results for a class of Hadamard partial fractional integral inclusions.
BENCHOHRA, Mouffak   +3 more
core  

Integrodifferential equations with analytic semigroups

open access: yesInternational Journal of Stochastic Analysis, Volume 16, Issue 2, Page 177-189, 2003., 2003
In this paper we study a class of integrodifferential equations considered in an arbitrary Banach space. Using the theory of analytic semigroups we establish the existence, uniqueness, regularity and continuation of solutions to these integrodifferential equations.
D. Bahuguna
wiley   +1 more source

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