{ "id": "2106.01803", "version": "v1", "published": "2021-06-03T12:49:56.000Z", "updated": "2021-06-03T12:49:56.000Z", "title": "Continuity of the inverse", "authors": [ "Evgenii Reznichenko" ], "comment": "in russian, 2008, http://gtopology.math.msu.su/erezn-ci", "categories": [ "math.GN" ], "abstract": "We define $\\Delta$-Baire spaces. If a paratopological group $G$ is $\\Delta$-Baire space, then $G$ is a topological group. Locally pseudocompact spaces, Baire $p$-spaces, Baire $\\Sigma$-spaces, products of \\v{C}ech-complete spaces are $\\Delta$-Baire spaces.", "revisions": [ { "version": "v1", "updated": "2021-06-03T12:49:56.000Z" } ], "analyses": { "subjects": [ "54H11", "54E52" ], "keywords": [ "baire space", "continuity", "locally pseudocompact spaces" ], "note": { "typesetting": "TeX", "pages": 0, "language": "ru", "license": "arXiv", "status": "editable" } } }