Vector Spaces and the Petersen Graph
نویسندگان
چکیده
It is shown that a matching covered graph has an ear decomposition with no more than one double ear if and only if there is no set S of edges such that |S∩A| is even for every alternating circuit A but |S ∩C| is odd for some even circuit C. Two proofs are presented. The first uses vector spaces and the second is constructive. Some applications are also given.
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عنوان ژورنال:
- Electr. J. Comb.
دوره 15 شماره
صفحات -
تاریخ انتشار 2008