{ "id": "0810.1192", "version": "v2", "published": "2008-10-07T13:40:53.000Z", "updated": "2008-10-22T12:32:30.000Z", "title": "Existence theorems in linear chaos", "authors": [ "S. Shkarin" ], "categories": [ "math.FA", "math.DS" ], "abstract": "Chaotic linear dynamics deals primarily with various topological ergodic properties of semigroups of continuous linear operators acting on a topological vector space. We treat questions of characterizing which of the spaces from a given class support a semigroup of prescribed shape satisfying a given topological ergodic property. In particular, we characterize countable inductive limits of separable Banach spaces that admit a hypercyclic operator, show that there is a non-mixing hypercyclic operator on a separable infinite dimensional complex Fr\\'echet space $X$ if and only if $X$ is non-isomorphic to the space $\\omega$ of all sequences with coordinatewise convergence topology. It is also shown for any $k\\in\\N$, any separable infinite dimensional Fr\\'echet space $X$ non-isomorphic to $\\omega$ admits a mixing uniformly continuous group $\\{T_t\\}_{t\\in C^n}$ of continuous linear operators and that there is no supercyclic strongly continuous operator semigroup $\\{T_t\\}_{t\\geq 0}$ on $\\omega$. We specify a wide class of Fr\\'echet spaces $X$, including all infinite dimensional Banach spaces with separable dual, such that there is a hypercyclic operator $T$ on $X$ for which the dual operator $T'$ is also hypercyclic. An extension of the Salas theorem on hypercyclicity of a perturbation of the identity by adding a backward weighted shift is presented and its various applications are outlined.", "revisions": [ { "version": "v2", "updated": "2008-10-22T12:32:30.000Z" } ], "analyses": { "subjects": [ "47A16", "37A25" ], "keywords": [ "infinite dimensional frechet space", "existence theorems", "linear chaos", "dimensional complex frechet space", "infinite dimensional complex frechet" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0810.1192S" } } }