Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9512676 | Discrete Mathematics | 2005 | 6 Pages |
Abstract
Let γsâ²(G) and γssâ²(G) be the signed edge domination number and signed star domination number of G, respectively. We prove that 2n-4⩾γssâ²(G)⩾γsâ²(G)⩾n-m holds for all graphs G without isolated vertices, where n=|V(G)|⩾4 and m=|E(G)|, and pose some problems and conjectures.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Baogen Xu,