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    JCT
    2008
    103views more  JCT 2008»
    A bijective proof of Jackson's formula for the number of factorizations of a cycle
    15 years 5 months ago
    A bijective proof of Jackson's formula for the number of factorizations of a cycle
    Download  www.lix.polytechnique.fr
    Factorizations of the cyclic permutation (1 2 . . . N) into two permutations with respectively n and m cycles, or, equivalently, unicellular bicolored maps with N edges and n whit...
    Gilles Schaeffer, Ekaterina A. Vassilieva
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    JCT
    2008
    58views more  JCT 2008»
    Sharp thresholds for the phase transition between primitive recursive and Ackermannian Ramsey numbers
    15 years 5 months ago
    Sharp thresholds for the phase transition between primitive recursive and Ackermannian Ramsey numbers
    Download  www.math.bgu.ac.il
    Menachem Kojman, Gyesik Lee, Eran Omri, Andreas We...
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    JCT
    2008
    63views more  JCT 2008»
    On the chromatic number of an oriented matroid
    15 years 5 months ago
    On the chromatic number of an oriented matroid
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    Winfried Hochstättler, Robert Nickel
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    CORR
    2007
    Springer
    93views Education» more  CORR 2007»
    Type-IV DCT, DST, and MDCT algorithms with reduced numbers of arithmetic operations
    15 years 5 months ago
    Type-IV DCT, DST, and MDCT algorithms with reduced numbers of arithmetic operations
    Download  www-math.mit.edu
    We present algorithms for the type-IV discrete cosine transform (DCT-IV) and discrete sine transform (DST-IV), as well as for the modified discrete cosine transform (MDCT) and it...
    Xuancheng Shao, Steven G. Johnson
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    CORR
    2007
    Springer
    106views Education» more  CORR 2007»
    Betti numbers of semi-algebraic sets defined by partly quadratic systems of polynomials
    15 years 5 months ago
    Betti numbers of semi-algebraic sets defined by partly quadratic systems of polynomials
    Download  www3.ntu.edu.sg
    Saugata Basu, Dmitrii V. Pasechnik, Marie-Fran&cce...
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