Let G=(V 1 , V 2 ; E ) be a bipartite graph with |V 1 |= |V 2 | =n 2k, where k is a positive integer. Suppose that the minimum degree of G is at least k+1. We show that if n>2k, then G contains k vertex-disjoint cycles. We also show that if n=2k, then G contains k&1 quadrilaterals and a path of orde
On the bipartite independence number of a balanced bipartite graph
β Scribed by Odile Favaron; Pedro Mago; Oscar Ordaz
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 603 KB
- Volume
- 121
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
Venezuela Ap. 47567, Caracas Favaron, O., P. Mago and 0. Ordaz, On the bipartite independence number of a balanced bipartite graph, Discrete Mathematics 121 (1993) 55-63.
The bipartite independence number GI aIp of a bipartite graph G is the maximum order of a balanced independent set of G. Let 6 be the minimum degree of the graph. When G itself is balanced, we establish some relations between aglp and the size or the connectivity of G. We also prove that the condition cz BIP $ S (resp. ~(a,~ < 6 -1) implies that G is hamiltonian (resp. Hamilton-biconnected), thus improving a result of Fraisse.
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