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    COMBINATORICS
    2007
    72views more  COMBINATORICS 2007»
    Matrix Partitions with Finitely Many Obstructions
    13 years 11 months ago
    Matrix Partitions with Finitely Many Obstructions
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    Each m by m symmetric matrix M over 0, 1, ∗, defines a partition problem, in which an input graph G is to be partitioned into m parts with adjacencies governed by M, in the sen...
    Tomás Feder, Pavol Hell, Wing Xie
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    COMBINATORICS
    2007
    74views more  COMBINATORICS 2007»
    Bipartite-Uniform Hypermaps on the Sphere
    13 years 11 months ago
    Bipartite-Uniform Hypermaps on the Sphere
    Download  www.univie.ac.at
    A hypermap is (hypervertex-) bipartite if its hypervertices can be 2-coloured in such a way that “neighbouring” hypervertices have different colours. It is bipartiteuniform i...
    Antonio Breda d'Azevedo, Rui Duarte
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    COMBINATORICS
    2007
    60views more  COMBINATORICS 2007»
    Higher Spin Alternating Sign Matrices
    13 years 11 months ago
    Higher Spin Alternating Sign Matrices
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    We define a higher spin alternating sign matrix to be an integer-entry square matrix in which, for a nonnegative integer r, all complete row and column sums are r, and all partia...
    Roger E. Behrend, Vincent A. Knight
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    COMBINATORICS
    2007
    118views more  COMBINATORICS 2007»
    On the Quantum Chromatic Number of a Graph
    13 years 11 months ago
    On the Quantum Chromatic Number of a Graph
    Download  www.combinatorics.org
    We investigate the notion of quantum chromatic number of a graph, which is the minimal number of colours necessary in a protocol in which two separated provers can convince a refe...
    Peter J. Cameron, Ashley Montanaro, Michael W. New...
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    ACL
    1990
    106views Computational Linguistics» more  ACL 1990»
    Free Indexation: Combinatorial Analysis and a Compositional Algorithm
    14 years 2 days ago
    Free Indexation: Combinatorial Analysis and a Compositional Algorithm
    Download  www.aclweb.org
    The principle known as 'free indexation' plays an important role in the determination of the referential properties of noun phrases in the principleand-parameters langua...
    Sandiway Fong
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