The paper is devoted to the study of the measure-driven differential inclusions dx(t) ∈ G(t, x(t)) dμ(t), x(0) = x 0 for arbitrary finite Borel measure μ. This type of results allows one to treat in a similar manner differential and difference inclusions, as well as impulsive problems and therefore to study the evolution of hybrid systems with very complex (including Zeno) behavior. Our method is based on viewing the Borel measures as Lebesgue-Stieltjes measures. We thus obtain, under very general assumptions, the existence of regulated or bounded variation solutions of the considered problem and we indicate some advantages of our approach. MSC: Primary 49N25; secondary 34A60; 93C30; 49J53; 37N35; 34A37
The matter of approximating the solutions of a differential problem driven by a rough measure by solutions of similar problems driven by "smoother" measures is considered under very general assumptions on the multifunction on the right-hand side. The key tool in our investigation is the notion of uniformly bounded ε-variations, which mixes the supremum norm with the uniformly bounded variation condition. Several examples to motivate the generality of our outcomes are included.
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