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General Cauchy-Lipschitz theory for shifted and non shifted Delta-Cauchy problems on time scales

By Loïc Bourdin and Emmanuel Trélat

Abstract

This article is devoted to completing some aspects of the classical Cauchy-Lipschitz (or Picard-Lindelöf) theory for general nonlinear systems posed on time scales, that are closed subsets of the set of real numbers. Partial results do exist but do not cover the framework of general dynamics on time-scales encountered e.g. in applications to control theory. In the present work, we first introduce the notion of absolutely continuous solution for shifted and non shifted Delta-Cauchy problems, and then the notion of a maximal solution. We state and prove a Cauchy-Lipschitz theorem, providing existence and uniqueness of the maximal solution of a given Delta-Cauchy problem under suitable assumptions like regressivity and local Lipschitz continuity, and discuss some related issues like the behavior of maximal solutions at terminal points

Topics: uniqueness, Time scale, shifted problems, Cauchy-Lipschitz (Picard-Lindelöf) theory, existence, [ MATH.MATH-OC ] Mathematics [math]/Optimization and Control [math.OC]
Publisher: HAL CCSD
Year: 2014
OAI identifier: oai:HAL:hal-00767661v1
Provided by: Hal-Diderot

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