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    DAM
    1998
    65views more  DAM 1998»
    Minimization of an M-convex Function
    14 years 3 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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    DAM
    1998
    61views more  DAM 1998»
    On Trees and Noncrossing Partitions
    14 years 4 days ago
    On Trees and Noncrossing Partitions
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    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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    DAM
    1998
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    Neither Reading Few Bits Twice Nor Reading Illegally Helps Much
    14 years 4 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
    14 years 4 days ago
    Combinatorics of RNA Secondary Structures
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    Ivo L. Hofacker, Peter Schuster, Peter F. Stadler
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    DAM
    1998
    78views more  DAM 1998»
    On Perfect Switching Classes
    14 years 4 days ago
    On Perfect Switching Classes
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    Alain Hertz
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    DAM
    1998
    74views more  DAM 1998»
    Approximation Algorithms for Min-sum p-clustering
    14 years 4 days ago
    Approximation Algorithms for Min-sum p-clustering
    Download  www.math.tau.ac.il
    Nili Guttmann-Beck, Refael Hassin
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    DAM
    1998
    66views more  DAM 1998»
    Approximation Algorithms for Minimum Tree Partition
    14 years 4 days ago
    Approximation Algorithms for Minimum Tree Partition
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    Nili Guttmann-Beck, Refael Hassin
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    DAM
    1998
    105views more  DAM 1998»
    Symmetries and Sense of Direction in Labeled Graphs
    14 years 4 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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    DAM
    1998
    93views more  DAM 1998»
    On the Approximability of the Steiner Tree Problem in Phylogeny
    14 years 4 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
    14 years 4 days ago
    Minimum Multiway Cuts in Trees
    Download  www.cs.elte.hu
    Péter L. Erdös, András Frank, L...
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