A Grassmann algebra for matroids
A Grassmann algebra for matroids
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拟阵的格拉斯曼代数
DOI:
10.1007/s00229-017-0958-z
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发表时间:
2017
影响因子:
0.6
通讯作者:
Giansiracusa J
中科院分区:
文献类型:
--
作者:
Giansiracusa J
We introduce an idempotent analogue of the exterior algebra for which the theory of tropical linear spaces (and valuated matroids) can be seen in close analogy with the classical Grassmann algebra formalism for linear spaces. The top wedge power of a tropical linear space is its Plücker vector, which we view as a tensor, and a tropical linear space is recovered from its Plücker vector as the kernel of the corresponding wedge multiplication map. We prove that an arbitraryd-tensor satisfies the tropical Plücker relations (valuated exchange axiom) if and only if thedth wedge power of the kernel of wedge-multiplication is free of rank one. This provides a new cryptomorphism for valuated matroids, including ordinary matroids as a special case.
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DOI:
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发表时间:
1997
期刊:
J. Comb. Theory B
影响因子:
--
作者:
K. Murota
通讯作者:
K. Murota
DOI:
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发表时间:
1986
期刊:
影响因子:
--
作者:
A. Dress
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A. Dress
影响因子:
2.5
作者:
Jeffrey Giansiracusa;Noah Giansiracusa
通讯作者:
Jeffrey Giansiracusa;Noah Giansiracusa
DOI:
--
发表时间:
1986
期刊:
影响因子:
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作者:
Zikang Xiong;Daniel Lawson;Joe Eappen;A. H. Qureshi;Suresh Jagannathan
通讯作者:
Suresh Jagannathan
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
A. Dress;W. Wenzel
通讯作者:
W. Wenzel