對偶超圖之著色數探討

本文藉構造bipartite graph 的形式討論超圖與對偶超圖的transversal number,進而探討最小著色數的上界,以及證明出此兩圖的最小著色數可差異很大,也可用此方法構造出想要的最小著色數之差異。最後探討在某些情形下,超圖與其對偶超圖的同構性,再則整理出其必要條件。 === H=(X,D) is called a hypergraph, where X is the vertex set and D is a family of subsets of X, denoted as D-edges, and we assume that every D-edges have at...

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Bibliographic Details
Main Authors: 莊佳芬, Jhuang, Jia-Fen
Language:英文
Published: 國立政治大學
Subjects:
Online Access:http://thesis.lib.nccu.edu.tw/cgi-bin/cdrfb3/gsweb.cgi?o=dstdcdr&i=sid=%22G0917510131%22.