## Abstract Given a fixed multigraph __H__ with __V__(__H__) = {__h__~1~,…, __h__~m~}, we say that a graph __G__ is __H__‐linked if for every choice of __m__ vertices __v__~1~, …, ~v~~m~ in __G__, there exists a subdivision of __H__ in __G__ such that for every __i__, __v__~i~ is the branch vertex
New Ore-Type Conditions for H-Linked Graphs
✍ Scribed by Michael Ferrara; Ronald Gould; Michael Jacobson; Florian Pfender; Jeffrey Powell; Thor Whalen
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 127 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
For a fixed (multi)graph H, a graph G is H‐linked if any injection f: V(H)→V(G) can be extended to an H‐subdivision in G. The notion of an H ‐linked graph encompasses several familiar graph classes, including k‐linked, k‐ordered and k‐connected graphs. In this article, we give two sharp Ore‐type degree sum conditions that assure a graph G is H ‐linked for arbitrary H. These results extend and refine several previous results on H ‐linked, k‐linked, and k‐ordered graphs. © 2011 Wiley Periodicals, Inc. J Graph Theory 71:69–77, 2012
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