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Title:Semiregular automorphisms in vertex-transitive graphs with a solvable group of automorphisms
Authors:ID Marušič, Dragan (Author)
Files:.pdf RAZ_Marusic_Dragan_i2017.pdf (235,26 KB)
MD5: 735FBD4E5D327BA888FB5876F88AC383
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:ZUP - University of Primorska Press
Abstract:It has been conjectured that automorphism groups of vertex-transitive (di)graphs, and more generally 2-closures of transitive permutation groups, must necessarily possess a fixed-point-free element of prime order, and thus a non-identity element with all orbits of the same length, in other words, a semiregular element. The known affirmative answers for graphs with primitive and quasiprimitive groups of automorphisms suggest that solvable groups need to be considered if one is to hope for a complete solution of this conjecture. It is the purpose of this paper to present an overview of known results and suggest possible further lines of research towards a complete solution of the problem.
Keywords:solvable group, semiregular automorphism, fixed-point-free automorphism, polycirculant conjecture
Year of publishing:2017
Number of pages:str. 461-468
Numbering:Vol. 13, no. 2
PID:20.500.12556/RUP-17629 This link opens in a new window
UDC:519.17:512.54
ISSN on article:1855-3966
COBISS.SI-ID:1539752900 This link opens in a new window
Publication date in RUP:02.01.2022
Views:1145
Downloads:18
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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:Slovenian
Title:Polregularni avtomorfizmi v točkovno tranzitivnih grafih z rešljivo grupo avtomorfizmov
Abstract:Domneva se, da grupa avtomorfizmov točkovno tranzitivnih (di)grafov, in splošneje 2-zaprtje tranzitivnih permutacijskih grup, vsebuje element brez negibnih točk, katerega red je praštevilo, in torej premore od identitete različen element, katerega orbite imajo vse enako dolžino, ali, kot takemu elementu pravimo, polregularen element. Znane potrditve te domneve za grafe s primitivnimi in kvaziprimitivnimi grupami avtomorfizmov dajejo slutiti, da je ključ do popolne rešitve tega problema treba iskati v rešljivih grupah. Namen tega članka je predstaviti pregled znanih rezultatov in predlagati možne nadaljnje smeri raziskav, ki utegnejo voditi k popolni rešitvi problema.
Keywords:rešljiva grupa, polregularni avtomorfizem, avtomorfizem brez negibnih točk, policirkulantna domneva


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