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A polynomial algorithm for minDSCon a subclass of series Parallel graphs

Published online by Cambridge University Press:  28 April 2009

Salim Achouri ,
Timothée Bossart  and
Alix Munier-Kordon
Salim Achouri
Affiliation:
LIP6 - Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France; Alix.Munier@lip6.fr
Timothée Bossart
Affiliation:
LIP6 - Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France; Alix.Munier@lip6.fr
Alix Munier-Kordon
Affiliation:
LIP6 - Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France; Alix.Munier@lip6.fr
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Abstract

The aim of this paper is to show a polynomial algorithm for the problem minimum directed sumcut for a class of series parallel digraphs. The method uses the recursive structure of parallel compositions in order to define a dominating set of orders. Then, the optimal order is easily reached by minimizing the directed sumcut. It is also shown that this approach cannot be applied in two more general classes of series parallel digraphs.

Keywords

Minimum directed sumcutseries parallel graphpolynomial algorithm.
Type
Research Article
Information
RAIRO - Operations Research , Volume 43 , Issue 2 , April 2009 , pp. 145 - 156
Copyright
© EDP Sciences, ROADEF, SMAI, 2009

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