Construction of graphs with given circular flow number.
學年 91
學期 2
出版(發表)日期 2003-07-07
作品名稱 Construction of graphs with given circular flow number.
作品名稱(其他語言)
著者 潘志實
單位 淡江大學數學學系
出版者
著錄名稱、卷期、頁數 J. Graph Theory 43, p.304-318
摘要 Suppose r ≥ 2 is a real number. A proper r-flow of a directed multi-graph equation image is a mapping equation image such that (i) for every edge equation image, equation image; (ii) for every vertex equation image, equation image. The circular flow number of a graph G is the least r for which an orientation of G admits a proper r-flow. The well-known 5-flow conjecture is equivalent to the statement that every bridgeless graph has circular flow number at most 5. In this paper, we prove that for any rational number r between 2 and 5, there exists a graph G with circular flow number r. © 2003 Wiley Periodicals, Inc. J Graph Theory 43: 304–318, 2003
關鍵字 graph;flow;circular flow number;rooted-flow;series join;parallel join;two-terminal graph
語言 en
ISSN 1097-0118
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 ,電子版
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