On the excluded minors for the matroids of branch-width k

被引:28
作者
Geelen, JF [1 ]
Gerards, AMH
Robertson, N
Whittle, GP
机构
[1] Univ Waterloo, Dept Combinator & Optimizat, Waterloo, ON N2L 3G1, Canada
[2] CWI, NL-1090 GB Amsterdam, Netherlands
[3] Eindhoven Univ Technol, Dept Math & Comp Sci, NL-5600 MB Eindhoven, Netherlands
[4] Ohio State Univ, Dept Math, Columbus, OH 43210 USA
[5] Univ Victoria, Sch Math & Comp Sci, Wellington, New Zealand
基金
加拿大自然科学与工程研究理事会;
关键词
branch-width; matroids; connectivity; excluded minors;
D O I
10.1016/S0095-8956(02)00046-1
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We prove that the excluded minors for the class of matroids of branch-width k have size at most (6(k) - 1)/5. (C) 2002 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:261 / 265
页数:5
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