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Title:Vizing's conjecture: a survey and recent results
Authors:ID Brešar, Boštjan (Author)
ID Dorbec, Paul (Author)
ID Goddard, Wayne (Author)
ID Hartnell, Bert L. (Author)
ID Henning, Michael A. (Author)
ID Klavžar, Sandi (Author)
ID Rall, Douglas F. (Author)
Files:URL http://dx.doi.org/10.1002/jgt.20565
 
Language:English
Work type:Not categorized
Typology:1.02 - Review Article
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Vizingova domneva iz leta 1968 trdi, da je dominacijsko število kartezičnega produkta dveh grafov vsaj tako veliko, kot je produkt dominacijskih števil faktorjev. V članku naredimo pregled različnih pristopov k tej osrednji domnevi iz teorije grafovske dominacije. Ob tem dokažemo tudi nekaj novih rezultatov. Tako so na primer pokazane nove lastnosti minimalnega protiprimera, dokazana je tudi nova spodnja meja za produkte grafov brez induciranega ▫$K_{1,3}$▫ s poljubnimi grafi. Skozi celoten članek so obravnavani pripadajoči odprti problemi, vprašanja in sorodne domneve.
Keywords:matematika, teorija grafov, kartezični produkt, dominacija, Vizingova domneva, mathematics, graph theory, Caretesian product, domination, Vizing's conjecture
Year of publishing:2012
Number of pages:str. 46-76
Numbering:Vol. 69, iss. 1
PID:20.500.12556/DKUM-51911 New window
UDC:519.17
ISSN on article:0364-9024
COBISS.SI-ID:16083801 New window
NUK URN:URN:SI:UM:DK:NL0V9DOP
Publication date in DKUM:10.07.2015
Views:1583
Downloads:97
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Journal of graph theory
Shortened title:J. graph theory
Publisher:J. Wiley & Sons
ISSN:0364-9024
COBISS.SI-ID:25747712 New window

Secondary language

Language:Unknown
Title:Vizingova domneva: pregled in novi rezultati
Abstract:Vizing's conjecture from 1968 asserts that the domination number of the Cartesian product of two graphs is at least as large as the product of their domination numbers. In this paper we survey the approaches to this central conjecture from domination theory and give some new results along the way. For instance, several new properties of a minimal counterexample to the conjecture are obtained and a lower bound for the domination number is proved for products of claw-free graphs with arbitrary graphs. Open problems, questions and related conjectures are discussed throughout the paper.


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