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Polynomial time algorithms for two classes of subgraph problem

Published online by Cambridge University Press:  20 August 2008

Sriraman Sridharan
Sriraman Sridharan*
Affiliation:
Département de Mathématiques et d'Informatique, Université de Perpignan via Domitia, 52 Avenue Paul Alduy, 66100 Perpignan, France; sriraman@univ-perp.fr
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Abstract

We design a O(n3) polynomial time algorithm for finding a (k-1)- regular subgraph in a k-regular graph without any induced star K 1,3(claw-free). A polynomial time algorithm for finding a cubic subgraph in a 4-regular locally connected graph is also given. A family of k-regular graphs with an induced star K 1,3 (k even, k ≥ 6), not containing any (k-1)-regular subgraph is also constructed.

Keywords

Polynomial time algorithmNP-completegraphstarregular graphperfect marching.
Type
Research Article
Information
RAIRO - Operations Research , Volume 42 , Issue 3 , July 2008 , pp. 291 - 298
Copyright
© EDP Sciences, ROADEF, SMAI, 2008

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