Laminar matroids
Laminar matroids
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层状拟阵
DOI:
10.1016/j.ejc.2017.01.002
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
J. Oxley
中科院分区:
文献类型:
--
作者:
Tara Fife;J. Oxley
A laminar family is a collection A of subsets of a set E such that, for any two intersecting sets, one is contained in the other. For a capacity function c on A, let I be {I:| I∩ A|≤ c (A) for all A∈ A}. Then I is the collection of independent sets of a (laminar) matroid on E. We present a method of compacting laminar presentations, characterize the class of laminar matroids by their excluded minors, present a way to construct all laminar matroids using basic operations, and compare the class of laminar matroids to other well-known classes of matroids.