Relaxation Results for Nonlinear Evolution Inclusions with One-sided Perron Right-hand Side

In a Banach space X, we study the evolution inclusion of the form x ^′(t)∈A x(t)+F(t,x(t)), where A is an m-dissipative operator and F is an almost lower semicontinuous multifunction with nonempty closed values. If F is one-sided Perron with sublinear growth, then, we establish the relation between the solutions of the considered differential inclusion and the solutions of the relaxed one, i.e., \(x^{\prime} (t)\in Ax (t)+\overline{co}F (t,x (t) )\) . A variant of the well known Filippov-Pli? lemma is also proved.     

微分包含的稳定性

本文通过引用生存定理，Ｌｙａｐｕｎｏｖ第二方法和比较定理，首先证明了微分包含的整体存在定理，然后讨论了微分包含解的稳定性     

Non-convex Quasi-variational Differential Inclusions

In this article we discuss the evolution problem known as sweeping process for a class of prox-regular non-convex sets. Assuming that such sets depend continuously on time and state, we prove local and global existence of solutions which are absolutely continuous functions.      

Stability-Like Properties of Differential Inclusions

The properties of invariance, stability, asymptotic stability and attainability of a given compact set with respect to a differential inclusion, have weak and strong versions: the weak version requires existence of a trajectory with the corresponding property, while the strong one requires this property for all trajectories. The following statement is proven in the paper (under slight restrictions) for each of the above-mentioned properties: if K has the weak property with respect to , then there is a (regulation) mapping G such that G(x) F(x) x and G has the strong property with respect to G(x). In addition, certain regularity of the set of solutions of the last inclusion is claimed.     

Stochastic Invariance for Differential Inclusions

The aim of this paper is to combine two ways for representing uncertainty through stochastic differential inclusions: a 'stochastic uncertainty", driven by a Wiener process, and a 'contingent uncertainty", driven by a set-valued map. The paper is also devoted to the invariance of closed under stochastic differential inclusions with a Lipschitz right-hand side, characterized in terms of stochastic tangent sets to closed subsets.     

微分包含的单调轨道

该文研究微分包含单调轨道的存在性.基于一个新的逼近方法,作者证明了无限维空间中的一个存在性,其特殊情形包含了已有的若于生存定理.     

Towards Fully Discretized Differential Inclusions

Euler schemes for the calculation of the solution set for a differential inclusion are investigated. Under Lipschitz and convexity conditions on the set-valued map the usual O(h)-approximation, h denoting the time step, is preserved, if one uses only boundary points in each step. An O( )-approximation is achieved, if one uses only extremal points. So, in case that the extremal sets are finite, a full discretization of the differential inclusion is performed.     

Discrete Approximation of Impulsive Differential Inclusions

The article deals with the approximation of the solution set and the reachable sets of an impulsive differential inclusion with variable times of impulses. It is strongly connected to [11 T. Donchev ( 2008 ). Approximation of the solution set of impulsive systems . In Lecture Notes in Comput. Sci . ( et al. . eds.). Vol. 4818 , Springer-Verlag , Berlin , pp. 309 – 316 . [Google Scholar]] and is its continuation. We achieve order of convergence 1 for the Euler approximation under Lipschitz assumptions on the set-valued right-hand side and on the functions describing the jump surfaces and jumps themselves. Another criterion prevents the beating phenomena and generalizes available conditions. Several test examples illustrate the conditions and the practical evaluation of the jump conditions.     

Reynold's Transport Theorem for Differential Inclusions

The well-known Reynold's Transport Theorem deals with the integral over a time-dependent set (that is evolving along a smooth vector field) and specifies its semiderivative with respect to time. Here reachable sets of differential inclusions are considered instead. Dispensing with any assumptions about the regularity of the compact initial set, we give sufficient conditions on the differential inclusion for the absolute continuity (of the integral) with respect to time and its weak derivative is formulated as a Hausdorff integral over the topological boundary.     

Viability Theorems for Higher-Order Differential Inclusions

The aim of this paper is to establish both necessary and sufficient conditions for the existence of viable solutions of a higher-order differential inclusion. Higher-order tangent sets are introduced and studied to get such conditions. These tangent sets are analysed in the case of the viable set defined by equality or inequality constraints and viability conditions are rewritten in terms of these constraints.     

Reynold''s Transport Theorem for Differential Inclusions

The well-known Reynold's Transport Theorem deals with the integral over a time-dependent set (that is evolving along a smooth vector field) and specifies its semiderivative with respect to time. Here reachable sets of differential inclusions are considered instead. Dispensing with any assumptions about the regularity of the compact initial set, we give sufficient conditions on the differential inclusion for the absolute continuity (of the integral) with respect to time and its weak derivative is formulated as a Hausdorff integral over the topological boundary.     

微分包含的周期生存轨道

对微分包含的周期生存轨道进行了研究讨论。首先给出微分包含生存问题的一约化性质;然后,利用投影微分包含的方法给出有限维空间中微分包含的周期生存轨道的一个存在性结果;在此基础上,利用Galerkin逼近方法得到Hilbert空间中偏微分包含周期生存轨道的存在性定理。     

Viability for Differential Inclusions on Graphs

Let X be a Banach space, I a nonempty, bounded interval and let $K:I\leadsto X$ be a given multi-valued function. We rephrase the concept of tangent set introduced by Cârj? et al. (Trans Amer Math Soc, 2008; Viability, Invariance and Applications. North-Holland Mathematics Studies, vol. 207. Elsevier, 2007) by saying that a bounded set $E\subseteq X$ is right tangent to at if $\liminf_{h\downarrow0}{1}/{h}\,\text{\rm dist}(\xi+hE;K(\tau+h))=0$ . Next, by using a tangency condition expressed in the terms of this concept, we establish several necessary and sufficient conditions for viability referring to differential inclusions on graphs.     

Generalized Differential Inclusions in Banach Spaces

We study a new type of solutions to differential inclusions in Banach spaces, which we call directional solutions. The idea is based on the observation that for a differentiable function and a closed set

On Periodic Viable Solutions of Differential Inclusions

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Attractors of Differential Inclusions and Their Approximation

We investigate the properties of solutions of differential inclusions in a Banach space. We prove a theorem on the existence of a global attractor for a multivalued semidynamical system generated by these solutions and a theorem on the approximation of an attractor in the Hausdorff metric.     

含m—耗散算子的随机微分包含

证明含m-耗散算子的微分包含随机积分解的存在性，统一和推广Avgerinos和Papaeorgiou，Kravvaritis的结果．讨论半线性微分包含的随机适度解问题．     

On Maximal Monotone Differential Inclusions in RN

In this paper we consider differential inclusions driven by a maximalmonotone operator. First we show that for the nonconvex system the solutionset viewed as a multifunction of the initial condition admits a continuousselector passing from a prescribed point. Then we use this selector to showthe path connectedness of the solution set. We also investigate thecontinuity properties of the solution multifunction. Finally we solve aviability problem and we also establish the existence of periodic trajectories.