{ "id": "1508.02700", "version": "v1", "published": "2015-08-11T19:28:49.000Z", "updated": "2015-08-11T19:28:49.000Z", "title": "Linear response for intermittent maps", "authors": [ "V. Baladi", "M. Todd" ], "categories": [ "math.DS", "nlin.CD" ], "abstract": "We consider the one parameter family a-> T_a (a in [0,1]) of Pomeau-Manneville type interval maps introduced by Liverani-Saussol-Vaienti, with their associated absolutely continuous invariant probability measure m_a. For a in (0,1), Sarig and Gou\\\"ezel proved that the system mixes only polynomially (in particular, there is no spectral gap). We show that for any bounded observable g the map sending a to the average of g with respect to m_a is differentiable on [0,1/2), and we give a (linear response) formula for the value of the derivative. This is the first time that a linear response formula is obtained for slowly mixing dynamics. Our argument shows how cone techniques can be used to achieve linear response.", "revisions": [ { "version": "v1", "updated": "2015-08-11T19:28:49.000Z" } ], "analyses": { "subjects": [ "37C40", "37C30", "37E05" ], "keywords": [ "intermittent maps", "pomeau-manneville type interval maps", "achieve linear response", "absolutely continuous invariant probability measure", "linear response formula" ], "publication": { "doi": "10.1007/s00220-016-2577-z", "journal": "Communications in Mathematical Physics", "year": 2016, "month": "Feb", "pages": 42 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016CMaPh.tmp...42B" } } }