Title
Evaluating the Rank Generating Function of a Graphic 2-Polymatroid
Abstract
We consider the complexity of the two-variable rank generating function, $S$, of a graphic 2-polymatroid. For a graph $G$, $S$ is the generating function for the number of subsets of edges of $G$ having a particular size and incident with a particular number of vertices of $G$. We show that for any $x, y \in \mathbb{Q}$ with $xy \not =1$, it is #P-hard to evaluate $S$ at $(x,y)$. We also consider the $k$-thickening of a graph and computing $S$ for the $k$-thickening of a graph.
Year
DOI
Venue
2006
10.1017/S0963548305007285
Combinatorics, Probability & Computing
Keywords
Field
DocType
particular size,generating function,two-variable rank generating function,graphic 2-polymatroid,particular number,rank generating function,computational complexity,graph,matroid
Matroid,Generating function,Graph,Discrete mathematics,Combinatorics,Vertex (geometry),Polymatroid,Rank (graph theory),Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
15
3
0963-5483
Citations 
PageRank 
References 
0
0.34
3
Authors
1
Name
Order
Citations
PageRank
S. D. Noble1839.56