{ "id": "1511.05718", "version": "v1", "published": "2015-11-18T10:13:24.000Z", "updated": "2015-11-18T10:13:24.000Z", "title": "Functions of exponential growth in a half-plane, sets of uniqueness and the M\"untz--Sz'asz problem for the Bergman space", "authors": [ "Marco M. Peloso", "Maura Salvatori" ], "categories": [ "math.CV", "math.FA" ], "abstract": "We introduce and study some new spaces of holomorphic functions on the right half-plane. In a previous work, S. Krantz, C. Stoppato and the first named author formulated the M\"untz--Sz'asz problem for the Bergman space, that is, the problem to characterize the sets of complex powers that form a complete set the unweighted Bergman space of a disc. In this paper, we construct a space of holomorphic functions on the right half-plane, whose sets of uniqueness correspond exactly to the sets of powers that are a complete set in Bergman space. We show that this space is a reproducing kernel Hilbert space and we prove a Paley--Wiener type theorem among several other structural properties. Moreover, we determine a sufficient condition on a set of powers to be a set of uniqueness for this space, thus providing a sufficient condition for the solution of the M\"untz--Sz'asz problem for the Bergman space.", "revisions": [ { "version": "v1", "updated": "2015-11-18T10:13:24.000Z" } ], "analyses": { "subjects": [ "30H99", "46E22", "30C15", "30C40" ], "keywords": [ "untz-szasz problem", "exponential growth", "uniqueness", "holomorphic functions", "right half-plane" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv151105718P" } } }