{ "id": "1705.00898", "version": "v1", "published": "2017-05-02T10:40:58.000Z", "updated": "2017-05-02T10:40:58.000Z", "title": "Exponential stability for nonautonomous functional differential equations with state-dependent delay", "authors": [ "Ismael Maroto", "Carmen Núñez", "Rafael Obaya" ], "categories": [ "math.DS" ], "abstract": "The properties of stability of compact set $\\mathcal{K}$ which is positively invariant for a semiflow $(\\Omega\\times W^{1,\\infty}([-r,0],\\mathbb{R}^n),\\Pi,\\mathbb{R}^+)$ determined by a family of nonautonomous FDEs with state-dependent delay taking values in $[0,r]$ are analyzed. The solutions of the variational equation through the orbits of $\\mathcal{K}$ induce linear skew-product semiflows on the bundles $\\mathcal{K}\\times W^{1,\\infty}([-r,0],\\mathbb{R}^n)$ and $\\mathcal{K}\\times C([-r,0],\\mathbb{R}^n)$. The coincidence of the upper-Lyapunov exponents for both semiflows is checked, and it is a fundamental tool to prove that the strictly negative character of this upper-Lyapunov exponent is equivalent to the exponential stability of $\\mathcal{K}$ in $\\Omega\\times W^{1,\\infty}([-r,0],\\mathbb{R}^n)$ and also to the exponential stability of this minimal set when the supremum norm is taken in $W^{1,\\infty}([-r,0],\\mathbb{R}^n)$. In particular, the existence of a uniformly exponentially stable solution of a uniformly almost periodic FDE ensures the existence of exponentially stable almost periodic solutions.", "revisions": [ { "version": "v1", "updated": "2017-05-02T10:40:58.000Z" } ], "analyses": { "subjects": [ "37B55", "34K20", "37B25", "34K14" ], "keywords": [ "nonautonomous functional differential equations", "exponential stability", "state-dependent delay", "upper-lyapunov exponent", "induce linear skew-product semiflows" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }