779 search results - page 23 / 156 » A graph polynomial for independent sets of bipartite graphs |
SIAMDM
2008
14 years 9 months ago
2008
Given a partition of the vertices of a graph into two sets, a flip is a move of a vertex from its own set to the other, under the condition that it has more incident edges to vert...
WEA
2005
Springer
15 years 3 months ago
2005
Springer
This work is motivated by the long-standing open problem of designing a polynomial-time algorithm that with high probability constructs an asymptotically maximum independent set in...
SWAT
1994
Springer
15 years 1 months ago
1994
Springer
Abstract. Finding maximum independent sets in graphs with bounded maximum degree is a well-studied NP-complete problem. We introduce an algorithm schema for improving the approxim...
APPROX
2004
Springer
15 years 3 months ago
2004
Springer
ABSTRACT: Let G(n, c/n) and Gr(n) be an n-node sparse random graph and a sparse random rregular graph, respectively, and let I(n, r) and I(n, c) be the sizes of the largest indepen...
JCT
2007
14 years 9 months ago
2007
Let G be a d-regular graph with girth g, and let α be the independence number of G. We show that α(G) ≥ 1 2 1 − (d − 1)−2/(d−2) − (g) n where (g) → 0 as g → ∞,...