On the structure of minimally n-extendable bipartite graphs
نویسنده
چکیده
It is proved that, in a minimal n-extendable bipartite graph, the subgraph induced by the edges both ends of which have degree at least n + 2 is a forest. As a consequence, every minimal n-extendable bipartite graph has at least 2n + 2 vertices of degree n + 1. This result is sharp. Some other structural results on minimally n-extendable bipartite graphs are also given. @ 1999 Elsevier Science B.V. All rights reserved
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ورودعنوان ژورنال:
- Discrete Mathematics
دوره 202 شماره
صفحات -
تاریخ انتشار 1999