Results 11 to 20 of about 225,971 (310)

Asymptotic stability of a perturbed abstract differential equations in Banach spaces [PDF]

open access: yesOperators and Matrices, 2020
Summary: This paper is mainly concerned with the asymptotic stability of the solutions of a perturbed abstract differential equation in Banach spaces. Let \(A\) be a generator of an exponentially stable operator semigroup and let \(C(t)\), \(t\geqslant 0\) be a linear bounded variable operator.
Damak, Hanen, Hammami, Mohamed Ali
openaire   +3 more sources

Stochastic Stability of Differential Equations in Abstract Spaces [PDF]

open access: yes, 2019
The stability of stochastic differential equations in abstract, mainly Hilbert, spaces receives a unified treatment in this self-contained book. It covers basic theory as well as computational techniques for handling the stochastic stability of systems from mathematical, physical and biological problems.
Kai Liu
openaire   +2 more sources

Strong solutions for differential equations in abstract spaces

open access: yesJournal of Differential Equations, 2005
The author considers in a sequentially complete locally convex space \((E,{\mathcal F})\) the initial value problem \[ u_t(t)= f(t, u(t)),\quad u(t_0)= u_0. \] The bounded elements of \(E\) are denoted by \[ E_b:= \Biggl\{x\in E:\| x\|_{{\mathcal F}}= \sup_{\rho\in{\mathcal F}}\,\rho(x)< \infty\Biggr\}.
E. Teixeira
openaire   +2 more sources

Weak Solutions of Abstract Evolutionary Integro-Differential Equations in Hilbert Spaces

open access: yesFunkcialaj Ekvacioj, 2009
We prove existence and uniqueness of weak solutions to certain abstract evolutionary integro-differential equations in Hilbert spaces, including evolution equations of fractional order less than 1. Our results apply, e.g., to parabolic partial integro-differential equations in divergence form with merely bounded and measurable coefficients. AMS subject
Rico Zacher
openaire   +3 more sources

Monotone iterative method for abstract impulsive integro-differential equations with nonlocal conditions in Banach spaces [PDF]

open access: yesApplications of Mathematics, 2014
The paper deals with the abstract impulsive problem of the form \[ \begin{aligned} & u'(t)+A\,u(t)=f(t,u(t),(Gu)(t)),\quad t\in [0,a]\setminus \{t_1,t_2,\dots ,t_m\},\\ & u(t_k+)=u(t_k)+I_k(u(t_k)),\quad k=1,2,\dots ,m,\\ & u(0)=x_0+g(u),\end{aligned}\tag{P} \] where ...
Chen, Pengyu, Li, Yongxiang
openaire   +3 more sources

A Study of Controllability of Impulsive Neutral Evolution Integro-Differential Equations with State-Dependent Delay in Banach Spaces

open access: yesMathematics, 2016
In this paper, we study the problem of controllability of impulsive neutral evolution integro-differential equations with state-dependent delay in Banach spaces.
Dimplekumar Chalishajar   +3 more
doaj   +2 more sources

Evolution Equations in Hilbert Spaces via the Lacunae Method [PDF]

open access: yesFractal and Fractional, 2022
In this paper, we consider evolution equations in the abstract Hilbert space under the special conditions imposed on the operator at the right-hand side of the equation.
M. Kukushkin
semanticscholar   +1 more source

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