Nets in P^2 and Alexander Duality
Nets in P^2 and Alexander Duality
复制标题
P^2 中的篮网和亚历山大对偶
DOI:
10.1007/s00454-023-00504-1
复制
发表时间:
2023
影响因子:
0.8
通讯作者:
Schenck, Hal
中科院分区:
文献类型:
--
作者:
Abdallah, Nancy;Schenck, Hal
A net inis a configuration of linesand pointsXsatisfying certain incidence properties. Nets appear in a variety of settings, ranging from quasigroups to combinatorial design to classification of Kac–Moody algebras to cohomology jump loci of hyperplane arrangements. For a matroidMand rankr, we associate a monomial ideal (a monomial variant of the Orlik–Solomon ideal) to the set of flats ofMof rank. In the context of line arrangements in, applying Alexander duality to the resulting ideal yields insight into the combinatorial structure of nets.