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Records found: 2  
Your query: Keywords = "homomorphisms"
  1. TitleGraphs and homomorphisms
    Author infoPavol Hell and Jaroslav Nešetřil
    Author Hell Pavol
    Co-authors Nešetřil Jaroslav 1946-
    Issue dataOxford : Oxford University Press , 2004. - xii, 244 s. : obr., 24 cm
    Issue1st ed.
    Edition Oxford lecture series in mathematics and its applications , 28
    ISBN0-19-852817-5, 978-0-19-852817-3
    NoteBibliografia s. 222-238. Register
    Keywords teória grafov - graph theory   homomorfizmy   matematika - mathematics   homomorphisms  
    LanguageEnglish
    CountryGreat Britian
    systematics 519.17
    512.533
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexkni - BOOKS
    Copy count2, currently available 0, at library only 2
    Call numberLocationSublocationUmiestnenieInfo
    287392Univerzita Mateja BelaDepartment of mathematicsIn-Library Use Only
    320767Univerzita Mateja BelaDepartment of mathematicsIn-Library Use Only
  2. TitleRegular homomorphisms and regular maps
    Author infoA. Malnic, R. Nedela, M. Skoviera
    Author Malnič Aleksander (34%)
    Co-authors Nedela Roman 1960- (33%) UMBFP12 - Inštitút matematiky a informatiky
    Škoviera Martin (33%)
    Source document European Journal of Combinatorics. Vol. 23, no. 4 (2002), pp. 449-461. - London : Academic Press, 2002
    Keywords matematika - mathematics   homomorfizmy   homomorphisms  
    LanguageEnglish
    CountryGreat Britian
    systematics 51
    AnnotationRegular homomorphisms of oriented maps essentially arise from a factorization by a subgroup of automorphisms. This kind of map homomorphism is studied in detail, and generalized to the case when the induced homomorphism of the underlying graphs is not valency preserving. Reconstruction is treated by means of voltage assignments on angles, a natural extension of the common assignments on darts. Lifting and projecting groups of automorphisms along regular homomorphisms is studied in some detail. Finally, the split-extension structure of lifted groups is analysed.
    Public work category ADE
    No. of Archival Copy28524
    Repercussion category ZHOU, Jin Xin - FENG, Yan Quan. Regular maps of graphs of order 4p. In Acta mathematica sinica. ISSN 1439-8516, 2012, vol. 28, no. 5, pp. 989-1012.
    ORBANIC, Alen - PETKOVSEK, Marko - PISANSKI, Tomaz - POTOCNIK, Primoz. A note on enumeration of one-vertex maps. In Ars mathematica contemporanea. ISSN 1855-3966, 2010, vol. 3, no. 1, pp. 1-12.
    ORBANIC, Alen. F-actions and parallel-product decomposition of reflexible maps. In Journal of algebraic combinatorics. ISSN 0925-9899, 2007, vol. 26, no. 4, pp. 507-527.
    DE MELLO KOCH, R. - RAMGOOLAM, S. - WEN, C. On the refined counting of graphs on surfaces. In Nuclear physics B. ISSN 0550-3213, 2013, vol. 870, no. 3, pp. 530-581.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika


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