{ "id": "0809.3644", "version": "v1", "published": "2008-09-22T08:04:07.000Z", "updated": "2008-09-22T08:04:07.000Z", "title": "The group of isometries of a Banach space and duality", "authors": [ "Miguel Martin" ], "comment": "To appear in J. Funct. Anal", "journal": "J. Funct. Anal. 255 (2008), 2966--2976.", "doi": "10.1016/j.jfa.2008.06.004", "categories": [ "math.FA" ], "abstract": "We construct an example of a real Banach space whose group of surjective isometries has no uniformly continuous one-parameter semigroups, but the group of surjective isometries of its dual contains infinitely many of them. Other examples concerning numerical index, hermitian operators and dissipative operators are also shown.", "revisions": [ { "version": "v1", "updated": "2008-09-22T08:04:07.000Z" } ], "analyses": { "subjects": [ "46B04", "46B10", "46E15", "47A12" ], "keywords": [ "real banach space", "surjective isometries", "hermitian operators", "examples concerning numerical index", "uniformly continuous one-parameter semigroups" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0809.3644M" } } }