{ "id": "1504.01415", "version": "v1", "published": "2015-04-06T21:08:10.000Z", "updated": "2015-04-06T21:08:10.000Z", "title": "A quotient-like construction involving elementary submodels", "authors": [ "Peter Burton" ], "comment": "10 pages", "categories": [ "math.LO" ], "abstract": "This article is an investigation of a method of deriving a topology from a space and an elementary submodel containing it. We first define and give the basic properties of this construction, known as $X/M$. In the next section, we construct some examples and analyse the topological relationship between $X$ and $X/M$. In the final section, we apply $X/M$ to get novel results about Lindel\\\"{o}f spaces, giving partial answers to a question of F.D. Tall and another question of Tall and M. Scheepers.", "revisions": [ { "version": "v1", "updated": "2015-04-06T21:08:10.000Z" } ], "analyses": { "subjects": [ "54D80", "54D20" ], "keywords": [ "elementary submodel", "quotient-like construction", "giving partial answers", "novel results", "final section" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150401415B" } } }