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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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