On a boundary value problem for a Sturm-Liouville type differential inclusion
type: Item
instance of: scholarly article
title: On a boundary value problem for a Sturm-Liouville type differential inclusion
zbMATH Open document ID: 1210.34083
author: Aurelian Cernea
published in: Journal of Systems Science and Complexity
publication date: 2010-10-29T00:00:00Z
review text: Considered the problem \[ (p(t)x'(t))'\in F(t,x(t))\quad \text{for a.e. } t\in I=[0,T], \tag{1} \] \[ \alpha x(0) -\beta\lim_{t\to 0+}p(t)x'(t)=0,\quad \gamma x(T) +\delta\lim_{t\to T-}p(t)x'(t)=0, \tag{2} \] where \(F:I\times E\to P(E)\) is a set-valued map, \(E\) is a real separable Banach space, \(p:I\to (0,\infty)\) is continuous, \(\alpha,\beta, \gamma,\delta\) are nonnegative reals with \[ \alpha\delta+\beta\gamma+\gamma\alpha\int_{0}^{T}p^{-1}(t)\,dt\neq 0. \] Hypothesis. {\parindent 6mm \begin{itemize}\item[(i)] \(F\) has nonempty closed values and, for every \(x\in E\), \(F(\cdot,x)\) is measurable. \item[(ii)] There exists \(L\in L^{1}(I,E)\) such that, for almost all \(t\in I,F(t,\cdot)\) is \(L(t)\)-Lipschitz in the sense that \(d_{H}(F(t,x),F(t,y))\leq L(t)|x-y|\,\, \forall x,y \in E\) and \(d(0,F(t,0))\leq L(t)\) for a.e. \(t\in I.\) \end{itemize}} Theorem. Assume that the Hypothesis is satisfied and \(ML<1.\) Let \(y(\cdot)\in AC_{p}^{1}(I,E)\) be such that there exists \(q(\cdot)\in L^{1}(I,E)\) with \(d((p(t)y(t))',F(t,y(t)))\leq q(t)\) a.e. \((I)\), \[ \alpha y(0) -\beta\lim_{t\to 0+}p(t)y'(t)=0,\quad \gamma y(T) +\delta\lim_{t\to T-}p(t)y'(t)=0. \] Then, for every \(\varepsilon >0\), there exists \(x(\cdot)\) a solution of (1), (2) satisfying for all \(t\in I,\) \[ |x(t) - y(t)|\leq \frac{M}{1-ML}\int_{0}^{T} q(t)\,dt +\varepsilon. \]
Mathematics Subject Classification ID: 34G25
Mathematics Subject Classification ID: 34B15
Mathematics Subject Classification ID: 34B24
Mathematics Subject Classification ID: 47N20
zbMATH DE Number: 5808612
zbMATH Keywords: Filippov type existence theorem
zbMATH Keywords: second-order differential inclusions
zbMATH Keywords: Sturm-Liouville problem
MaRDI profile type: Publication
full work available at URL: s11424-010-8017-9
OpenAlex ID: W2145647397
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DOI: 10.1007/S11424-010-8017-9
description: scientific article; zbMATH DE number 5808612