Abstract
AbstractA 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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