On structure of graphs embedded on surfaces of nonnegative characteristic with application to choosability
نویسنده
چکیده
In this paper, we prove a structural theorem of Lebesgue’s type concerning some unavoidable con1gurations for graphs which can be embedded on surfaces of nonnegative characteristic and in which no two 3-cycles share a common vertex. As a corollary, we get a result about choosability of graphs embedded in surface of positive characteristic. c © 2002 Elsevier Science B.V. All rights reserved.
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عنوان ژورنال:
- Discrete Mathematics
دوره 248 شماره
صفحات -
تاریخ انتشار 2002