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    COMBINATORICS
    1999
    83views more  COMBINATORICS 1999»
    New Lower Bounds for Some Multicolored Ramsey Numbers
    13 years 7 months ago
    New Lower Bounds for Some Multicolored Ramsey Numbers
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    In this article we use two different methods to find new lower bounds for some multicolored Ramsey numbers. In the first part we use the finite field method used by Greenwood and ...
    Aaron Robertson
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    COMBINATORICS
    1998
    66views more  COMBINATORICS 1998»
    Some New Ramsey Colorings
    13 years 7 months ago
    Some New Ramsey Colorings
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    New lower bounds for 15 classical Ramsey numbers are established. Several of the colorings are found using a new variation of local search heuristics. Several others are found usi...
    Geoffrey Exoo
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    JGT
    2007
    87views more  JGT 2007»
    A new upper bound on the cyclic chromatic number
    13 years 7 months ago
    A new upper bound on the cyclic chromatic number
    Download  www.cdam.lse.ac.uk
    A cyclic colouring of a plane graph is a vertex colouring such that vertices incident with the same face have distinct colours. The minimum number of colours in a cyclic colouring...
    Oleg V. Borodin, Hajo Broersma, Alexei N. Glebov, ...
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    COMBINATORICS
    2006
    105views more  COMBINATORICS 2006»
    New Upper Bound for a Class of Vertex Folkman Numbers
    13 years 8 months ago
    New Upper Bound for a Class of Vertex Folkman Numbers
    Download  www.maths.tcd.ie
    N. Kolev, N. Nenov
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    COMBINATORICS
    2007
    84views more  COMBINATORICS 2007»
    A New Upper Bound on the Total Domination Number of a Graph
    13 years 7 months ago
    A New Upper Bound on the Total Domination Number of a Graph
    Download  www.combinatorics.org
    Michael A. Henning, Anders Yeo
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