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Minimizing bumps in ordered sets by substitution decomposition

โœ Scribed by George Steiner


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
495 KB
Volume
76
Category
Article
ISSN
0012-365X

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โœฆ Synopsis


A linear extension x1x2. . . x, of a partially or&red set P has a bump whenever Xi <xi+1 in P. The bump number problem is to find a linear extension of P with the smallest possible number of bumps. We present a basic decomposition theorem for this problem. This leads to simple formulae for the bump number of series-parallel posets.


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