{ "id": "1902.09284", "version": "v1", "published": "2019-02-25T14:24:01.000Z", "updated": "2019-02-25T14:24:01.000Z", "title": "A new metastable convergence criterion and an application in the theory of uniformly convex Banach spaces", "authors": [ "Thomas Powell" ], "categories": [ "math.FA", "math.LO" ], "abstract": "We study a convergence criterion which generalises the notion of being monotonically decreasing, and introduce a quantitative version of this criterion, a so called metastable rate of asymptotic decreasingness. We then present a concrete application in the fixed point theory of uniformly convex Banach spaces, in which we carry out a quantitative analysis of a convergence proof of Kirk and Sims. More precisely, we produce a rate of metastability (in the sense of Tao) for the Picard iterates of mappings T which satisfy a variant of the convergence criterion, and whose fixed point set has nonempty interior.", "revisions": [ { "version": "v1", "updated": "2019-02-25T14:24:01.000Z" } ], "analyses": { "keywords": [ "uniformly convex banach spaces", "metastable convergence criterion", "application", "fixed point set", "picard iterates" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }