Article ID Journal Published Year Pages File Type
4652637 Electronic Notes in Discrete Mathematics 2011 6 Pages PDF
Abstract

We study the approximability of computing a maximum size uniquely restricted matching in a given bipartite graph. We prove that it is hard to approximate within a factor of , for any ϵ>0, unless NP=ZPP, and it is APX-complete when restricted to bipartite graphs of degree at most 3. We show that it can be approximated within a factor of 2 when restricted to 3-regular bipartite graphs.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics