Polyhedra and parameter spaces for matroids over valuation rings
Polyhedra and parameter spaces for matroids over valuation rings
复制标题
评估环上拟阵的多面体和参数空间
DOI:
10.1016/j.aim.2018.11.009
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发表时间:
2019
影响因子:
1.7
通讯作者:
Fink A
中科院分区:
文献类型:
--
作者:
Fink A
In this paper we address two of the major foundational questions in the theory of matroids over rings. First, we provide a cryptomorphic axiomatisation, by introducing an analogue of the base polytope for matroids. Second, we describe a parameter space for matroids over a valuation ring, which turns out to be a tropical version of the Bott–Samelson varieties for the full flag variety. Thus a matroid over a valuation ring is a sequence of flags of tropical linear spaces a.k.a. valuated matroids.
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DOI:
10.1016/j.jcta.2017.05.001
发表时间:
2017
期刊:
J. Comb. Theory, Ser. A
影响因子:
--
作者:
Joswig;Michael;Schröter;Benjamin
通讯作者:
Benjamin
DOI:
--
发表时间:
2018
期刊:
Journal of Combinatorial Theory
影响因子:
--
作者:
Emanuele Delucchi;Luca Moci
通讯作者:
Luca Moci
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
M. Baker;N. Bowler
通讯作者:
N. Bowler
DOI:
10.1016/j.jcta.2013.10.002
发表时间:
2012-12
期刊:
J. Comb. Theory A
影响因子:
--
作者:
M. Beck;Felix Breuer;Logan Godkin;Jeremy L. Martin
通讯作者:
M. Beck;Felix Breuer;Logan Godkin;Jeremy L. Martin
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
A. Dress
通讯作者:
A. Dress