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Weighted parameters in (P5, P5)-free graphs

✍ Scribed by Vassilis Giakoumakis; Irena Rusu


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
488 KB
Volume
80
Category
Article
ISSN
0166-218X

No coin nor oath required. For personal study only.

✦ Synopsis


We use the modular decomposition to give O(n(m + n)) algorithms for finding a maximum weighted clique (respectively stable set) and an approximate weighted colouring (respectively partition into cliques) in a (&,E)-free graph. As a by-product, we obtain an O(m+n) algorithm for finding a minimum weighted transversal of the CS in a (Ps,&)-free graph.


πŸ“œ SIMILAR VOLUMES


Dominating cliques in P5-free graphs
✍ G. BacsΓ³; Zs. Tuza πŸ“‚ Article πŸ“… 1990 πŸ› Springer Netherlands 🌐 English βš– 372 KB
A decomposition for a class of (P5,PΜ„5)-
✍ J.L. Fouquet πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 598 KB

Fouquet, J.L., A decomposition for a class of (P,, P,)-free graphs, Discrete Mathematics 121 (1993) 75-83. We give a decomposition for a subclass of (P5, P, )-free graphs, leading to an 0(n3) algorithm for the recognition of this class of graphs.

On Ξ±-redundant vertices in P5-free graph
✍ Andreas BrandstΓ€dt; HoΓ ng-Oanh Le; Van Bang Le πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 73 KB
(P5,diamond)-free graphs revisited: stru
✍ Andreas BrandstΓ€dt πŸ“‚ Article πŸ“… 2004 πŸ› Elsevier Science 🌐 English βš– 437 KB

Using the concept of prime graphs and modular decomposition of graphs, we give a complete structure description of (P5,diamond)-free graphs implying that these graphs have bounded clique width (the P5 is the induced path with ΓΏve vertices a; b; c; d; e and four edges ab; bc; cd; de, and the diamond

P5-free augmenting graphs and the maximu
✍ Michael U. Gerber; Alain Hertz; David Schindl πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 174 KB

The complexity status of the maximum stable set problem in the class of P5-free graphs is unknown. In this paper, we ΓΏrst propose a characterization of all connected P5-free augmenting graphs. We then use this characterization to detect families of subclasses of P5-free graphs where the maximum stab