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    COMBINATORICA
    2010
    134views Machine Learning» more  COMBINATORICA 2010»
    Asymptotic enumeration of integer matrices with large equal row and column sums
    12 years 11 months ago
    Asymptotic enumeration of integer matrices with large equal row and column sums
    Download  www.cs.uga.edu
    Let s, t, m, n be positive integers such that sm = tn. Let M(m, s; n, t) be the number of m
    E. Rodney Canfield, Brendan D. McKay
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    COMBINATORICA
    2010
    134views Machine Learning» more  COMBINATORICA 2010»
    The homology of a locally finite graph with ends
    12 years 11 months ago
    The homology of a locally finite graph with ends
    Download  www.math.uni-hamburg.de
    We show that the topological cycle space of a locally finite graph is a canonical quotient of the first singular homology group of its Freudenthal compactification, and we charact...
    Reinhard Diestel, Philipp Sprüssel
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    COMBINATORICA
    2010
    121views Machine Learning» more  COMBINATORICA 2010»
    Every rayless graph has an unfriendly partition
    12 years 11 months ago
    Every rayless graph has an unfriendly partition
    Download  www.math.uni-hamburg.de
    We prove that every rayless graph has an unfriendly partition.
    Henning Bruhn, Reinhard Diestel, Agelos Georgakopo...
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    COMBINATORICA
    2010
    186views Machine Learning» more  COMBINATORICA 2010»
    Approximation algorithms via contraction decomposition
    12 years 11 months ago
    Approximation algorithms via contraction decomposition
    Download  www-math.mit.edu
    We prove that the edges of every graph of bounded (Euler) genus can be partitioned into any prescribed number k of pieces such that contracting any piece results in a graph of bou...
    Erik D. Demaine, MohammadTaghi Hajiaghayi, Bojan M...
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    COMBINATORICA
    2010
    129views Machine Learning» more  COMBINATORICA 2010»
    Hypergraphs with independent neighborhoods
    13 years 1 months ago
    Hypergraphs with independent neighborhoods
    Download  www.math.cmu.edu
    For each k 2, let k (0, 1) be the largest number such that there exist k-uniform hypergraphs on n vertices with independent neighborhoods and (k + o(1)) n k edges as n . We pro...
    Tom Bohman, Alan M. Frieze, Dhruv Mubayi, Oleg Pik...
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    COMBINATORICA
    2010
    140views Machine Learning» more  COMBINATORICA 2010»
    A superadditivity and submultiplicativity property for cardinalities of sumsets
    13 years 1 months ago
    A superadditivity and submultiplicativity property for cardinalities of sumsets
    Download  www.math.bme.hu
    For finite sets of integers A1, A2 . . . An we study the cardinality of the n-fold sumset A1 +
    Katalin Gyarmati, Máté Matolcsi, Imr...
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    COMBINATORICA
    2010
    130views Machine Learning» more  COMBINATORICA 2010»
    New hook length formulas for binary trees
    13 years 1 months ago
    New hook length formulas for binary trees
    Download  www-irma.u-strasbg.fr
    Guo-Niu Han
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    COMBINATORICA
    2010
    151views Machine Learning» more  COMBINATORICA 2010»
    A randomized embedding algorithm for trees
    13 years 1 months ago
    A randomized embedding algorithm for trees
    Download  theory.stanford.edu
    In this paper, we propose a simple and natural randomized algorithm to embed a tree T in a given graph G. The algorithm can be viewed as a "self-avoiding tree-indexed random ...
    Benny Sudakov, Jan Vondrák
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    COMBINATORICA
    2010
    162views Machine Learning» more  COMBINATORICA 2010»
    Formulae and growth rates of high-dimensional polycubes
    13 years 1 months ago
    Formulae and growth rates of high-dimensional polycubes
    Download  page.mi.fu-berlin.de
    A d-dimensional polycube is a facet-connected set of cubes in d dimensions. Fixed polycubes are considered distinct if they differ in their shape or orientation. A proper d-dimens...
    Ronnie Barequet, Gill Barequet, Günter Rote
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    COMBINATORICA
    2010
    130views Machine Learning» more  COMBINATORICA 2010»
    On a poset of trees
    13 years 1 months ago
    On a poset of trees
    Download  www.cs.elte.hu
    Péter Csikvári
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