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Volumn 70, Issue 1, 1996, Pages 23-36

Complexity of tree homomorphisms

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EID: 13544270178     PISSN: 0166218X     EISSN: None     Source Type: Journal    
DOI: 10.1016/0166-218X(96)00099-6     Document Type: Article
Times cited : (31)

References (26)
  • 1
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    • The effect of two cycles on the complexity of colourings by directed graphs
    • J. Bang-Jansen and P. Hell, The effect of two cycles on the complexity of colourings by directed graphs, Discrete Appl. Math. 26 (1990) 1-23.
    • (1990) Discrete Appl. Math. , vol.26 , pp. 1-23
    • Bang-Jansen, J.1    Hell, P.2
  • 3
    • 0041505367 scopus 로고
    • On the complexity of colouring by superdigraphs of bipartite graphs
    • J. Bang-Jensen, P. Hell and G. MacGillivray, On the complexity of colouring by superdigraphs of bipartite graphs, Discrete Math. 109 (1992) 27-44.
    • (1992) Discrete Math. , vol.109 , pp. 27-44
    • Bang-Jensen, J.1    Hell, P.2    MacGillivray, G.3
  • 10
    • 0042507129 scopus 로고
    • Ph.D. Thesis, Free University Berlin
    • W. Gutjahr, Graph colourings, Ph.D. Thesis, Free University Berlin, 1991.
    • (1991) Graph Colourings
    • Gutjahr, W.1
  • 13
    • 0039375129 scopus 로고
    • Homomorphisms of graphs and their orientations
    • P. Hell and J. Nešetřil, Homomorphisms of graphs and their orientations, Monatsh. Math. 85 (1978) 39-48.
    • (1978) Monatsh. Math. , vol.85 , pp. 39-48
    • Hell, P.1    Nešetřil, J.2
  • 16
  • 18
    • 0013460461 scopus 로고
    • Duality of graph homomorphisms
    • Paul Erdös is Eighty, Bolyai Society Mathematical Studies, Budapest, Hungary
    • P. Hell, J. Nešetřil and X. Zhu, Duality of graph homomorphisms, Combinatorics, Paul Erdös is Eighty, Vol. 2 (Bolyai Society Mathematical Studies, Budapest, Hungary, 1993).
    • (1993) Combinatorics , vol.2
    • Hell, P.1    Nešetřil, J.2    Zhu, X.3
  • 19
    • 85027602735 scopus 로고    scopus 로고
    • Duality and polynomial testing of tree homomorphisms
    • in print
    • P. Hell, J. Nešetřil and X. Zhu, Duality and polynomial testing of tree homomorphisms, Trans. AMS, in print.
    • Trans. AMS
    • Hell, P.1    Nešetřil, J.2    Zhu, X.3
  • 20
    • 0010679294 scopus 로고
    • Homomorphisms to oriented cycles
    • P. Hell, H. Zhou and X. Zhu, Homomorphisms to oriented cycles, Combinatorica 13 (1993) 421-433.
    • (1993) Combinatorica , vol.13 , pp. 421-433
    • Hell, P.1    Zhou, H.2    Zhu, X.3
  • 21
    • 0004930728 scopus 로고
    • Homomorphisms to oriented paths
    • P. Hell and X. Zhu, Homomorphisms to oriented paths, Discrete. Math. 132 (1994), 107-114.
    • (1994) Discrete. Math. , vol.132 , pp. 107-114
    • Hell, P.1    Zhu, X.2
  • 22
    • 0039704323 scopus 로고
    • The existence of homomorphisms to oriented cycles
    • P. Hell and X. Zhu, The existence of homomorphisms to oriented cycles, SIAM J. Discrete Math., 8 (1995) 208-222.
    • (1995) SIAM J. Discrete Math. , vol.8 , pp. 208-222
    • Hell, P.1    Zhu, X.2
  • 23
    • 0039704322 scopus 로고    scopus 로고
    • On the complexity of colourings by vertex-transitive and arc-transitive digraphs
    • in press
    • G. MacGillivray, On the complexity of colourings by vertex-transitive and arc-transitive digraphs, SIAM J. Discrete Math, in press.
    • SIAM J. Discrete Math
    • MacGillivray, G.1
  • 24
    • 0019632421 scopus 로고
    • On the complexity of the general colouring problem
    • H.A. Maurer, J.H. Sudborough and E. Welzl, On the complexity of the general colouring problem, Inform. and Control 51 (1981) 123-145.
    • (1981) Inform. and Control , vol.51 , pp. 123-145
    • Maurer, H.A.1    Sudborough, J.H.2    Welzl, E.3
  • 25
    • 0002364072 scopus 로고
    • Symmetric graphs and interpretations
    • E. Welzl, Symmetric graphs and interpretations, J. Combin. Theory Ser. B 37 (1984) 235-244.
    • (1984) J. Combin. Theory Ser. B , vol.37 , pp. 235-244
    • Welzl, E.1
  • 26
    • 85029984631 scopus 로고    scopus 로고
    • A polynomial algorithm for homomorphisms to oriented cycles
    • to appear
    • X. Zhu, A polynomial algorithm for homomorphisms to oriented cycles, J. Algorithms, to appear.
    • J. Algorithms
    • Zhu, X.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.