Color‐feasible sequences of a multigraph
作者:
D. de Werra,
期刊:
Networks
(WILEY Available online 1978)
卷期:
Volume 8,
issue 1
页码: 7-16
ISSN:0028-3045
年代: 1978
DOI:10.1002/net.3230080105
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractGiven a multigraph G, a sequence (h1,…, hm) of nonnegative integers h1≥… ≥ hmis color‐feasible for G if there is an edge‐coloring H1,…, Hmwhere Hihas exactly hiedges (i=1,…, m). It is known that the set C(G) of color‐feasible sequences of G is partially ordered. We show that if G is simple with maximum degree d, then all maximal sequences of C(G) have at most d+1 nonzero entries. This result can be extended to multigraphs. Furthermore, if the odd elementary cycles of a multigraph G satisfy some specified conditions then all maximal sequences have at most d+
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