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    EJC
    2006
    95views Information Technology» more  EJC 2006»
    Group connectivity of graphs with diameter at most 2
    14 years 28 days ago
    Group connectivity of graphs with diameter at most 2
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    Hong-Jian Lai, Xiangjuan Yao
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    EJC
    2006
    93views Information Technology» more  EJC 2006»
    The rank of connection matrices and the dimension of graph algebras
    14 years 28 days ago
    The rank of connection matrices and the dimension of graph algebras
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    László Lovász
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    EJC
    2006
    77views Information Technology» more  EJC 2006»
    Invariant subspaces, duality, and covers of the Petersen graph
    14 years 28 days ago
    Invariant subspaces, duality, and covers of the Petersen graph
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    A general method for finding elementary abelian regular covering projections of finite connected graphs is applied to the Petersen graph. As a result, a complete list of pairwise ...
    Aleksander Malnic, Primoz Potocnik
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    EJC
    2006
    99views Information Technology» more  EJC 2006»
    Hadamard ideals and Hadamard matrices with two circulant cores
    14 years 28 days ago
    Hadamard ideals and Hadamard matrices with two circulant cores
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    We apply Computational Algebra methods to the construction of Hadamard matrices with two circulant cores, given by Fletcher, Gysin and Seberry. We introduce the concept of Hadamar...
    Ilias S. Kotsireas, Christos Koukouvinos, Jennifer...
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    EJC
    2006
    124views Information Technology» more  EJC 2006»
    On the canonical metric representation, average distance, and partial Hamming graphs
    14 years 28 days ago
    On the canonical metric representation, average distance, and partial Hamming graphs
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    Average distance of a graph is expressed in terms of its canonical metric representation. The equality can be modified to an inequality in such a way that it characterizes isometr...
    Sandi Klavzar
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    EJC
    2006
    152views Information Technology» more  EJC 2006»
    A note on Ramsey numbers with two parameters
    14 years 28 days ago
    A note on Ramsey numbers with two parameters
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    1 The Ramsey number R(G1, G2) is the smallest integer p such that for any graph G on p vertices2 either G contains G1 or G contains G2, where G denotes the complement of G. In this...
    Yi Ru Huang, Jian Sheng Yang, Kemin Zhang
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    EJC
    2006
    80views Information Technology» more  EJC 2006»
    Hamiltonicity of digraphs for universal cycles of permutations
    14 years 28 days ago
    Hamiltonicity of digraphs for universal cycles of permutations
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    The digraphs P(n, k) have vertices corresponding to length k permutations of an n set and arcs corresponding to (k + 1) permutations. Answering a question of Starling, Klerlein, K...
    Garth Isaak
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    EJC
    2006
    71views Information Technology» more  EJC 2006»
    Some arithmetic properties of the q-Euler numbers and q-Salié numbers
    14 years 28 days ago
    Some arithmetic properties of the q-Euler numbers and q-Salié numbers
    Download  www.math.ecnu.edu.cn
    Victor J. W. Guo, Jiang Zeng
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    EJC
    2006
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    The independence numbers of fullerenes and benzenoids
    14 years 28 days ago
    The independence numbers of fullerenes and benzenoids
    Download  math.syr.edu
    Jack E. Graver
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    EJC
    2006
    86views Information Technology» more  EJC 2006»
    Homogeneous factorisations of graphs and digraphs
    14 years 28 days ago
    Homogeneous factorisations of graphs and digraphs
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    Michael Giudici, Cai Heng Li, Primoz Potocnik, Che...
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