{ "id": "1610.03972", "version": "v1", "published": "2016-10-13T08:19:45.000Z", "updated": "2016-10-13T08:19:45.000Z", "title": "1-well-covered graphs revisited", "authors": [ "Vadim E. Levit", "Eugen Mandrescu" ], "comment": "16 pages; 4 figures", "categories": [ "math.CO", "cs.DM" ], "abstract": "A graph is well-covered if all its maximal independent sets are of the same size (M. D. Plummer, 1970). A well-covered graph (with at least two vertices) is 1-well-covered if the deletion of every vertex leaves a graph which is well-covered as well (J. W. Staples, 1975). In this paper, we provide new characterizations of 1-well-covered graphs, which we further use to build 1-well-covered graphs by corona, join, and concatenation operations.", "revisions": [ { "version": "v1", "updated": "2016-10-13T08:19:45.000Z" } ], "analyses": { "subjects": [ "05C69", "05C75", "05C76", "05C25", "G.2.2" ], "keywords": [ "maximal independent sets", "vertex leaves", "concatenation operations", "well-covered graph", "characterizations" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }