{ "id": "2201.10230", "version": "v1", "published": "2022-01-25T10:40:09.000Z", "updated": "2022-01-25T10:40:09.000Z", "title": "Toeplitz and related operators on polyanalytic Fock spaces", "authors": [ "Raffael Hagger" ], "comment": "20 pages", "categories": [ "math.FA" ], "abstract": "We give a characterization of compact and Fredholm operators on polyanalytic Fock spaces in terms of limit operators. As an application we obtain a generalization of the Bauer-Isralowitz theorem using a matrix valued Berezin type transform. We then apply this theorem to Toeplitz and Hankel operators to obtain necessary and sufficient conditions for compactness. As it turns out, whether or not a Toeplitz or Hankel operator is compact does not depend on the polyanalytic order. For Hankel operators this even holds on the true polyanalytic Fock spaces.", "revisions": [ { "version": "v1", "updated": "2022-01-25T10:40:09.000Z" } ], "analyses": { "subjects": [ "47B35", "30H20", "47B07", "47A53", "47L80" ], "keywords": [ "related operators", "hankel operator", "true polyanalytic fock spaces", "matrix valued berezin type transform", "bauer-isralowitz theorem" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }