BOKAL, Drago, Mojca BRACIC, Marek DERŇÁR and Petr HLINĚNÝ. On Degree Properties of Crossing-Critical Families of Graphs. Electronic Journal of Combinatorics. internet: -, 2019, vol. 26, No 1, p. 1-28. ISSN 1077-8926. Available from: https://dx.doi.org/10.37236/7753.
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Basic information
Original name On Degree Properties of Crossing-Critical Families of Graphs
Authors BOKAL, Drago (705 Slovenia), Mojca BRACIC (705 Slovenia), Marek DERŇÁR (703 Slovakia, belonging to the institution) and Petr HLINĚNÝ (203 Czech Republic, belonging to the institution).
Edition Electronic Journal of Combinatorics, internet, - 2019, 1077-8926.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10201 Computer sciences, information science, bioinformatics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 0.641
RIV identification code RIV/00216224:14330/19:00108270
Organization unit Faculty of Informatics
Doi http://dx.doi.org/10.37236/7753
UT WoS 000463559900011
Keywords in English graph theory; crossing number; crossing-critical
Tags formela-journal
Tags International impact, Reviewed
Changed by Changed by: RNDr. Pavel Šmerk, Ph.D., učo 3880. Changed: 11/6/2022 00:15.
Abstract
Answering an open question from 2007, we construct infinite k-crossing-critical families of graphs that contain vertices of any prescribed odd degree, for any sufficiently large k. To answer this question, we introduce several properties of infinite families of graphs and operations on the families allowing us to obtain new families preserving those properties. This conceptual setup allows us to answer general questions on behaviour of degrees in crossing-critical graphs: we show that, for any set of integers D such that min(D) >= 3 and 3, 4 is an element of D, and for any sufficiently large k, there exists a k-crossing-critical family such that the numbers in D are precisely the vertex degrees that occur arbitrarily often in (large enough) graphs of this family. Furthermore, even if both D and some average degree in the interval (3, 6) are prescribed, k-crossing-critical families exist for any sufficiently large k.
Links
GA17-00837S, research and development projectName: Strukturální vlastnosti, parametrizovaná řešitelnost a těžkost v kombinatorických problémech
Investor: Czech Science Foundation
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