Search results

Records found: 3  
Your query: Author Sysno/Doc.kind = "^umb_un_auth 0254307 xpca^"
  1. TitleMaps of Archimedean class and operations on dessins
    Author infoAntonio Breda d'Azevedo, Domenico A. Catalano, Ján Karabáš, Roman Nedela
    Author Breda d'Azevedo Antonio (10%)
    Co-authors Catalano Domenico A. (10%)
    Karabáš Ján 1977- (40%) UMBFP05 - Katedra informatiky
    Nedela Roman 1960- (40%) UMBFP05 - Katedra informatiky
    Source document Discrete Mathematics. Vol. 338, no. 10 special issue (2015), pp. 1814-1825. - Amsterdam : Elsevier B.V., 2015 ; Czech-Slovak international symposium on graph theory, combinatorics, algorithms and applications medzinárodné sympózium
    Keywords diskrétna matematika   matematika - mathematics   discrete mathematics  
    LanguageEnglish
    CountryNetherlands
    systematics 51
    Public work category AFD
    No. of Archival Copy34086
    Repercussion category PISANSKI, Tomaz - WILLIAMS, Gordon - BERMAN, Leah Wrenn. Operations on oriented maps. In Symmetry-basel. ISSN 2073-8994, 2017, vol. 9, no. 11.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
    unrecognised

    unrecognised

  2. TitleDiscrete Mathematics
    Corporation Czech-Slovak international symposium on graph theory, combinatorics, algorithms and applications . medzinárodné sympózium , 7. , Slovakia , 07.-13.2013
    Issue dataAmsterdam : Elsevier B.V. , 2015
    ISSN0012-365X1872-681X
    Form. Descr.časopisy - journals, elektronické časopisy - electronic journals
    Year, No.Vol. 338 no. 10 special issue (2015)
    LanguageEnglish
    CountryNetherlands
    URLLink na zdrojový dokument Link na zdrojový dokument
    Public work category GII
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    References - PERIODIKÁ - Súborný záznam periodika
    (2) - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
    ARTICLES2015:
    Maps of Archimedean class and operations on dessins,
    On Wiman's theorem for graphs
  3. TitleOn Wiman's theorem for graphs
    Author infoAlexander Mednykh, Ilya Mednykh
    Author Mednykh Alexander 1953- (75%) UMBFP10 - Katedra matematiky
    Co-authors Mednykh Ilya (25%)
    Source document Discrete Mathematics. Vol. 338, no. 10 special issue (2015), pp. 1793-1800. - Amsterdam : Elsevier B.V., 2015 ; Czech-Slovak international symposium on graph theory, combinatorics, algorithms and applications medzinárodné sympózium
    Keywords matematika - mathematics   grafy - charts - graphs  
    LanguageEnglish
    CountryNetherlands
    systematics 51
    Annotation© 2015 Elsevier B.V.Abstract The aim of the paper is to find discrete versions of the Wiman theorem which states that the maximum possible order of an automorphism of a Riemann surface of genus g≥2 is 4g+2. The role of a Riemann surface in this paper is played by a finite connected graph. The genus of a graph is defined as the rank of its homology group. Let ZinfN/inf be a cyclic group acting freely on the set of directed edges of a graph X of genus g≥2. We prove that N≤2g+2. The upper bound N=2g+2 is attained for any even g. In this case, the signature of the orbifold X/ZinfN/inf is (0;2,g+1), that is X/ZinfN/inf is a tree with two branch points of order 2 and g+1 respectively. Moreover, if N<2g+2, then N≤2g. The upper bound N=2g is attained for any g≥2. The latter takes a place when the signature of the orbifold X/ZinfN/inf is (0;2,2g).
    Public work category AFC
    No. of Archival Copy36748
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
    unrecognised

    unrecognised



  This site uses cookies to make them easier to browse. Learn more about how we use cookies.