Results 11 to 20 of about 310,302 (319)

On nonlinear, nonconvex evolution inclusions [PDF]

open access: bronzeKodai Mathematical Journal, 1995
The paper contrasts the sets \(S(x_0)\) and \(S_e(x_0)\) of integral solutions of Benilan to the differential systems \(- x'(t)\in Ax(t)+ F(t, x(t))\), \(x(0)= x_0\) and \(-x'(t)\in Ax(t)+ \text{ext } F(t, x(t))\), \(x(0)= x_0\) respectively, where ext stands for the set of extreme points. The main results state that, for every \(x_0\in \overline D\), \
Shou Chuan Hu, Nikolaos S. Papageorgiou
openalex   +3 more sources

Second order doubly nonlinear evolution inclusions –quasi-variational approach–

open access: diamondDiscrete and Continuous Dynamical Systems - S, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nobuyuki Kenmochi   +2 more
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Periodic solutions of nonlinear evolution inclusions

open access: greenJournal of Computational and Applied Mathematics, 1994
The authors establish the existence of periodic trajectories for a class of nonlinear, time-varying evolution inclusions, in which the multivalued term is nonconvex-valued. This result partially extends a recent work of \textit{I. Vrabie} [Proc. Am. Math. Soc. 109, 653-661 (1990; Zbl 0701.34074)].
V. Lakshmikantham   +1 more
openalex   +3 more sources

Existence theorems for nonlinear evolution inclusions [PDF]

open access: bronzeAnnali di Matematica Pura ed Applicata, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tiziana Cardinali, Francesca Papalini
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On an existence result for nonlinear evolution inclusions [PDF]

open access: bronzeProceedings of the Edinburgh Mathematical Society, 1996
In this paper we present an existence result for a class of nonlinear evolutions inclusions. A result on the compactness of the solution set for a differential inclusion is also established.
Stanisław Migórski
openalex   +3 more sources

Properties of the solution set of nonlinear evolution inclusions

open access: greenApplied Mathematics & Optimization, 1997
The paper deals with nonlinear nonautonomous evolution inclusions of the form \[ \dot x(t)+ A(t,x(t)) \in F(t,x(t)), \] a.e. on \(T\), \(x(0) =x_0\) defined on a Gelfand triple of spaces \((X,H,X^*)\). In Section 3 the authors provide conditions for the solution set to be an \(R_\delta\)-set, or path-connected in \(C(T,H)\).
Nikolas S. Papageorgiou, Naseer Shahzad
  +5 more sources

Nonlinear Delay Evolution Inclusions on Graphs [PDF]

open access: bronze, 2014
We prove a necessary and a sufficient condition for a time-dependent closed set to be viable with respect to a delay evolution inclusion. An application to a null controllability problem is also included.
Mihai Necula   +2 more
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Nonlinear Volterra integrodifferential evolution inclusions and optimal control [PDF]

open access: bronzeKodai Mathematical Journal, 1991
Volterra integrodifferential evolution inclusions of nonconvolutory type with time dependent unbounded operators and with both convex and nonconvex multivalued perturbations are studied. The results obtained are applied to distributed parameter optimal control problems. By assuming suitable assumptions on the operator \(A\) and on the multifunction \(F\
Nikolaos S. Papageorgiou
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Second Order Nonlinear Evolution Inclusions I: Existence and Relaxation Results

open access: greenActa Mathematica Sinica, English Series, 2005
The authors study second-order nonlinear nonmonotone evolution inclusions defined in the framework of an evolution triple of spaces. In particular, they consider the problem \[ \ddot{x}(t) +A(t,\dot{x}(t))+Bx(t) \in F(t,x(t),\dot{x}(t)) \text{ a.e. }t \in T=[0,b],\;x(0)=z_0,\;\dot{x}(0)=z_1 , \] where \(A:T \times X \to X^*\) is a nonlinear operator, \(
Νικόλαος Παπαγεωργίου   +1 more
openalex   +2 more sources

Solutions of nonlinear evolution inclusions

open access: yesJournal of Mathematical Analysis and Applications, 2004
The authors consider the nonlinear evolution inclusion \[ \frac{du} {dt}+B\bigl( t,u(t)\bigr)\ni f(t),\quad t\in[0,T]\quad u(0)=u_0,\tag{1} \] in a real reflexive Banach space \(V\) with dual \(V^*\), in which \(B:[0,T]\times V \to V^*\) is measurable and nonempty closed convex set-valued and \(f\in L^q(V^*)\).
Su Ke, He Zhen
semanticscholar   +2 more sources

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