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    80
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    DAM
    1998
    65views more  DAM 1998»
    Minimization of an M-convex Function
    15 years 11 days ago
    Minimization of an M-convex Function
    Download  www.dais.is.tohoku.ac.jp
    M-convex functions, introduced by Murota (1996, 1998), enjoy various desirable properties as “discrete convex functions.” In this paper, we propose two new polynomial-time sca...
    Akiyoshi Shioura
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    102
    Voted
    DAM
    1998
    61views more  DAM 1998»
    On Trees and Noncrossing Partitions
    15 years 11 days ago
    On Trees and Noncrossing Partitions
    Download  kam.mff.cuni.cz
    We give a simple and natural proof of (an extension of) the identity P(k, l, n) = P2(k − 1, l − 1, n − 1). The number P(k, l, n) counts noncrossing partitions of {1, 2, . . ...
    Martin Klazar
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    101
    Voted
    DAM
    1998
    88views more  DAM 1998»
    Neither Reading Few Bits Twice Nor Reading Illegally Helps Much
    15 years 11 days ago
    Neither Reading Few Bits Twice Nor Reading Illegally Helps Much
    Download  lovelace.thi.informatik.uni-frankfurt.de
    We first consider so-called (1,+s)-branching programs in which along every consistent path at most s variables are tested more than once. We prove that any such program computing...
    Stasys Jukna, Alexander A. Razborov
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    DAM
    1998
    86views more  DAM 1998»
    Combinatorics of RNA Secondary Structures
    15 years 11 days ago
    Combinatorics of RNA Secondary Structures
    Download  www.cs.clemson.edu
    Ivo L. Hofacker, Peter Schuster, Peter F. Stadler
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    DAM
    1998
    78views more  DAM 1998»
    On Perfect Switching Classes
    15 years 11 days ago
    On Perfect Switching Classes
    Download  www.gerad.ca
    Alain Hertz
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    DAM
    1998
    74views more  DAM 1998»
    Approximation Algorithms for Min-sum p-clustering
    15 years 11 days ago
    Approximation Algorithms for Min-sum p-clustering
    Download  www.math.tau.ac.il
    Nili Guttmann-Beck, Refael Hassin
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    83
    Voted
    DAM
    1998
    66views more  DAM 1998»
    Approximation Algorithms for Minimum Tree Partition
    15 years 11 days ago
    Approximation Algorithms for Minimum Tree Partition
    Download  www.math.tau.ac.il
    Nili Guttmann-Beck, Refael Hassin
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    91
    Voted
    DAM
    1998
    105views more  DAM 1998»
    Symmetries and Sense of Direction in Labeled Graphs
    15 years 11 days ago
    Symmetries and Sense of Direction in Labeled Graphs
    Download  www.site.uottawa.ca
    Paola Flocchini, Alessandro Roncato, Nicola Santor...
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    69
    Voted
    DAM
    1998
    93views more  DAM 1998»
    On the Approximability of the Steiner Tree Problem in Phylogeny
    15 years 11 days ago
    On the Approximability of the Steiner Tree Problem in Phylogeny
    Download  www.cs.iastate.edu
    David Fernández-Baca, Jens Lagergren
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    DAM
    1998
    73views more  DAM 1998»
    Minimum Multiway Cuts in Trees
    15 years 11 days ago
    Minimum Multiway Cuts in Trees
    Download  www.cs.elte.hu
    Péter L. Erdös, András Frank, L...
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