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Title:Hamilton cycles in primitive vertex-transitive graphs of order a product of two primes - the case PSL(2, q[sup]2) acting on cosets of PGL(2, q)
Authors:ID Du, Shao Fei (Author)
ID Kutnar, Klavdija (Author)
ID Marušič, Dragan (Author)
Files:.pdf RAZ_Du_Shao_Fei_i2020.pdf (365,31 KB)
MD5: F3521C1BBA3131134689E567ABEC2837
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:ZUP - University of Primorska Press
Abstract:A step forward is made in a long standing Lovász problem regarding hamiltonicity of vertex-transitive graphs by showing that every connected vertex-transitive graph of order a product of two primes arising from the group action of the projective special linear group PSL▫$(2, q^2)$▫ on cosets of its subgroup isomorphic to the projective general linear group PGL$(2, q)$ contains a Hamilton cycle.
Keywords:vertex-transitive graph, Hamilton cycle, automorphism group, orbital graph
Year of publishing:2020
Number of pages:str. 1-15
Numbering:Vol. 19, no. 1
PID:20.500.12556/RUP-12845 This link opens in a new window
UDC:519.17
ISSN on article:1855-3966
DOI:10.26493/1855-3974.2163.5df This link opens in a new window
COBISS.SI-ID:22957571 This link opens in a new window
Publication date in RUP:19.07.2020
Views:1786
Downloads:47
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Record is a part of a journal

Title:Ars mathematica contemporanea
Publisher:Društvo matematikov, fizikov in astronomov, Društvo matematikov, fizikov in astronomov, Univerza na Primorskem, Fakulteta za matematiko, naravoslovje in informacijske tehnologije
ISSN:1855-3966
COBISS.SI-ID:239049984 This link opens in a new window

Secondary language

Language:English
Abstract:Članek prinaša napredek pri dolgo odprti Lovászevi domnevi o hamiltonskosti vozliščno tranzitivnih grafov. V članku je dokazano, da vsak povezan vozliščno tranzitiven graf, katerega red je produkt dveh praštevil, ki izhaja iz grupnega delovanja specialne projektivne linearne grupe PSL▫$(2, q^2)$▫ na odsekih po njeni podgrupi izomorfni splošni projektivni linearni grupi PGL$(2, q)$, premore hamiltonski cikel.
Keywords:točkovno tranzitiven graf, hamiltonski cikel, grupa avtomorfizmov, orbitalni graf


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