{ "id": "2004.09435", "version": "v1", "published": "2020-04-20T16:43:25.000Z", "updated": "2020-04-20T16:43:25.000Z", "title": "On the properties of quasi-Banach function spaces", "authors": [ "Aleš Nekvinda", "Dalimil Peša" ], "categories": [ "math.FA" ], "abstract": "In this paper we explore some basic properties of quasi-Banach function spaces which are important in applications. Namely, we show that they posses a generalised version of Riesz--Fischer property, that embeddings between them are always continuous and that the dilation operator is bounded on them. We also provide a characterisation of separability for quasi-Banach function spaces over the Euclidean space. Furthermore, we extend the classical Riesz--Fischer theorem to the context of quasinormed spaces and, as a consequence, obtain an alternative proof of completeness of quasi-Banach function spaces.", "revisions": [ { "version": "v1", "updated": "2020-04-20T16:43:25.000Z" } ], "analyses": { "subjects": [ "46A16", "46E30" ], "keywords": [ "quasi-banach function spaces", "basic properties", "dilation operator", "euclidean space", "classical riesz-fischer theorem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }