Isotropical Linear Spaces and Valuated Delta-Matroids

Isotropical Linear Spaces and Valuated Delta-Matroids

The spinor variety is cut out by the quadratic Wick relations among the principal Pfaffians of an $n \times n$ skew-symmetric matrix. Its points correspond to $n$-dimensional isotropic subspaces of a $2n$-dimensional vector space. In this paper we tropicalize this picture, and we develop a combinato...

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Bibliographic Details
Main Author: Felipe Rincón
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2011-01-01
Series:Discrete Mathematics & Theoretical Computer Science
Subjects:
spinor variety
isotropic subspace
tropical linear space
valuated matroid
delta-matroid
matroid subdivision
[math.math-co] mathematics [math]/combinatorics [math.co]
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
Online Access:https://dmtcs.episciences.org/2954/pdf

Internet

https://dmtcs.episciences.org/2954/pdf

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