## Abstract In this paper, we show that if __G__ is a 3‐edge‐connected graph with $S \subseteq V(G)$ and $|S| \le 12$, then either __G__ has an Eulerian subgraph __H__ such that $S \subseteq V(H)$, or __G__ can be contracted to the Petersen graph in such a way that the preimage of each vertex of th
Two-connected orientations of Eulerian graphs
✍ Scribed by Alex R. Berg; Tibor Jordán
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 116 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0364-9024
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✦ Synopsis
Abstract
A graph G = (V, E) is said to be weakly four‐connected if G is 4‐edge‐connected and G – x is 2‐edge‐connected for every x ∈ V. We prove that every weakly four‐connected Eulerian graph has a 2‐connected Eulerian orientation. This verifies a special case of a conjecture of A. Frank . © 2006 Wiley Periodicals, Inc. J Graph Theory 52: 230–242, 2006
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