Results 51 to 60 of about 37,334 (161)

New criteria for the existence of periodic and almost periodic solutions for some evolution equations in Banach spaces

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
In this work we give a new criteria for the existence of periodic and almost periodic solutions for some differential equation in a Banach space. The linear part is nondensely defined and satisfies the Hille-Yosida condition.
Khalil Ezzinbi, M. Jazar
doaj   +1 more source

Existence of pseudo almost periodic solutions to some classes of partial hyperbolic evolution equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2007
The paper examines the existence of pseudo almost periodic solutions to some classes of partial hyperbolic evolution equations. Namely, some sufficient conditions for the existence and uniqueness of pseudo almost periodic solutions to those classes of ...
Toka Diagana
doaj   +1 more source

Square-mean almost periodic solutions nonautonomous stochastic differential equations

open access: yesElectronic Journal of Differential Equations, 2007
This paper concerns the square-mean almost periodic solutions to a class of nonautonomous stochastic differential equations on a separable real Hilbert space.
Toka Diagana, Paul H. Bezandry
doaj  

Dependence results on almost periodic and almost automorphic solutions of evolution equations

open access: yesElectronic Journal of Differential Equations, 2010
We consider the semilinear evolution equations $x'(t) = A(t) x(t) + f(x(t), u(t),t)$ and $x'(t) = A(t) x(t) + f(x(t), zeta,t)$ where $A(t)$ is a unbounded linear operator on a Banach space X and f is a nonlinear operator.
Joel Blot   +2 more
doaj  

Pseudo almost periodic solutions for a Lasota-Wazewska model

open access: yesElectronic Journal of Differential Equations, 2016
In this work, we consider a new model describing the survival of red blood cells in animals. Specifically, we study a class of Lasota-Wazewska equation with pseudo almost periodic varying environment and mixed delays.
Samira Rihani   +2 more
doaj  

Existence and Stability Properties of Almost Periodic Solutions in Discrete Almost Periodic Systems

open access: yesAdvances in Pure Mathematics, 2018
In order to obtain the existence of almost periodic solutions of both linear and nonlinear almost periodic discrete systems: \( x(n+1) = A(n)x(n) \) and \( x_{i}(n+1)=\sum _{j=1}^{m}a_{ij}(n)g_{j}(x_{j}(n)) \quad \text{ for } \quad 1 \le i \le m \), respectively, we shall consider between certain stability properties, which are referred to as uniformly
openaire   +2 more sources

Almost Periodic Solutions for Impulsive Fractional Stochastic Evolution Equations

open access: yesInternational Journal of Analysis and Applications, 2014
In this paper, we consider the existence of square-mean piecewise almost periodic solutions for impulsive fractional stochastic evolution equations involving Caputo fractional derivative.
Toufik Guendouzi, Lamia Bousmaha
doaj   +2 more sources

Periodic and almost periodic solutions for multi-valued differential equations in Banach spaces

open access: yesElectronic Journal of Differential Equations, 2000
It is known that for $omega$-periodic differential equations of monotonous type, in uniformly convex Banach spaces, the existence of a bounded solution on ${Bbb R}^+$ is equivalent to the existence of an omega-periodic solution (see Haraux [5] and ...
E. Hanebaly, B. Marzouki
doaj  

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