CPC
2000
13 years 4 months ago
2000
A recently posed question of H
CPC
2004
13 years 4 months ago
2004
Mader asked whether every C4-free graph G contains a subdivision of a complete graph whose order is at least linear in the average degree of G. We show that there is a subdivision...
DMTCS
2006
13 years 4 months ago
2006
We consider the problem of generating a random q-colouring of a graph G = (V, E). We consider the simple Glauber Dynamics chain. We show that if for all v V the average degree of...
CORR
2006
Springer
13 years 4 months ago
2006
Springer
Abstract-- An elementary combinatorial Tanner graph construction for a family of near-regular low density parity check (LDPC) codes achieving high girth is presented. These codes a...
DM
2008
13 years 4 months ago
2008
The coefficient of fragmentability of a class of graphs measures the proportion of vertices that need to be removed from the graphs in the class in order to leave behind bounded s...
APPROX
2006
Springer
13 years 8 months ago
2006
Springer
Inspired by Feige (36th STOC, 2004), we initiate a study of sublinear randomized algorithms for approximating average parameters of a graph. Specifically, we consider the average ...
WG
2005
Springer
13 years 10 months ago
2005
Springer
In unweighted case, approximation ratio for the independent set problem has been analyzed in terms of the graph parameters, such as the number of vertices, maximum degree, and aver...
ICALP
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. This paper deals with approximations of maximum independent sets in non-uniform hypergraphs of low degree. We obtain the first performance ratio that is sublinear in term...