{ "id": "1310.0396", "version": "v1", "published": "2013-10-01T17:10:54.000Z", "updated": "2013-10-01T17:10:54.000Z", "title": "Tychonoff-like Product Theorems for Local Topological Properties", "authors": [ "Simon Brandhorst", "Marcel Erné" ], "categories": [ "math.GN" ], "abstract": "We consider classes T of topological spaces (referred to as T-spaces) that are stable under continuous images and frequently under arbitrary products. A local T-space has for each point a neighborhood base consisting of subsets that are T-spaces in the induced topology. A general necessary and sufficient criterion for a product of topological spaces to be a local T-space in terms of conditions on the factors enables one to establish a broad variety of theorems saying that a product of spaces has a certain local property (like local compactness, local sequential compactness, local \\sigma-compactness, local connectedness etc.) if and only if each factor has that local property, almost all have the corresponding global property, and not too many factors fail a suitable additional condition. Many of the results admit a point-free formulation; a look at sum decompositions into components of spaces with local properties yields product decompositions into indecomposable factors for certain classes of frames like completely distributive lattices or hypercontinuous frames.", "revisions": [ { "version": "v1", "updated": "2013-10-01T17:10:54.000Z" } ], "analyses": { "subjects": [ "54B10", "06B35", "54D05", "54D30", "54D45" ], "keywords": [ "local topological properties", "tychonoff-like product theorems", "local property", "local properties yields product decompositions", "local t-space" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1310.0396B" } } }