๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

ModelingK-coteries by well-covered graphs

โœ Scribed by Yamashita, Masafumi; Kameda, Tsunehiko (Tiko)


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
115 KB
Volume
34
Category
Article
ISSN
0028-3045

No coin nor oath required. For personal study only.

โœฆ Synopsis


The concept of k-coterie is useful for achieving k-mutual exclusion in distributed systems. A graph is said to be well covered if any of its maximal independent sets is also maximum. We first show that a graph G is well covered with independence number k if and only if G represents the incidence relation among quorums forming a k-coterie. We then discuss the problem of constructing k-coteries having some desirable properties. We also characterize the well-covered graphs with independence number 2.


๐Ÿ“œ SIMILAR VOLUMES


Subdivisions, parity and well-covered gr
โœ Caro, Yair ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 121 KB ๐Ÿ‘ 2 views

A graph is well-covered if every maximal independent set is maximum. This concept, introduced by Plummer in 1970 (J. Combin. Theory 8 (1970)), is the focal point of much interest and current research. We consider well-covered 2-degenerate graphs and supply a structural (and polynomial time algorithm

Well covered simplicial, chordal, and ci
โœ Prisner, Erich; Topp, Jerzy; Vestergaard, Preben Dahl ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 427 KB ๐Ÿ‘ 2 views

A graph G is called well covered if every two maximal independent sets of G have the same number of vertices. In this paper, we,characterize well covered simplicial, chordal and circular arc graphs.

Tracking the P-NP boundary for well-cove
โœ Sankaranarayana, Ramesh S. ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 135 KB ๐Ÿ‘ 1 views

Certain fundamental graph problems like recognition, dominating set, Hamiltonian cycle and path, and clique partition, which are hard for well-covered graphs in general, can be solved efficiently for very well covered graphs. We address the question of how far the class of very well covered graphs c

A characterization of Zm-well-covered gr
โœ Caro, Y.; Hartnell, B. ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 252 KB ๐Ÿ‘ 1 views

The class of Z m -well-covered graphs, those in which the cardinality of every maximal independent subset of vertices is congruent to the same number modulo m, contains the well-covered graphs as well as parity graphs. Here we consider such graphs, where there is no small cycle present and obtain a

Degree sums and graphs that are not cove
โœ Saito, Akira ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 127 KB ๐Ÿ‘ 2 views

For a graph G, let ฯƒ 3 (G) = min{deg G x + deg G y + deg G z: {x, y, z} is an independent set in G}. Enomoto et al. [Enowoto et al., J Graph Theory 20 (1995), 419-422] have proved that the vertex set of a 2-connected graph G of order n with ฯƒ 3 (G) โ‰ฅ n is covered by two cycles, edges or vertices. Ex