Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4648976 | Discrete Mathematics | 2010 | 7 Pages |
Abstract
In matching theory, barrier sets (also known as Tutte sets) have been studied extensively due to their connection to maximum matchings in a graph. For a root θθ of the matching polynomial, we define θθ-barrier and θθ-extreme sets. We prove a generalized Berge–Tutte formula and give a characterization for the set of all θθ-special vertices in a graph.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Cheng Yeaw Ku, Kok Bin Wong,