Chern–Schwartz–MacPherson cycles of matroids
Chern–Schwartz–MacPherson cycles of matroids
复制标题
拟阵的陈-施瓦茨-麦克弗森循环
DOI:
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发表时间:
2017
影响因子:
1.8
通讯作者:
Kristin M. Shaw
中科院分区:
文献类型:
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作者:
Lucía López de Medrano;Felipe Rincón;Kristin M. Shaw
We define Chern–Schwartz–MacPherson (CSM) cycles of an arbitrary matroid. These are balanced weighted fans supported on the skeleta of the corresponding Bergman fan. In the case that the matroid arises from a complex hyperplane arrangement A , we show that these cycles represent the CSM class of the complement of A . We also prove that for any matroid, the degrees of its CSM cycles are given by the coefficients of (a shift of) the reduced characteristic polynomial, and that CSM cycles are valuations under matroid polytope subdivisions.
影响因子:
1.1
作者:
G. François;J. Rau
通讯作者:
J. Rau
影响因子:
4.9
作者:
Adiprasito, Karim;Huh, June;Katz, Eric
通讯作者:
Katz, Eric