Poset Ideals of P-Partitions and Generalized Letterplace and Determinantal Ideals

Poset Ideals of P-Partitions and Generalized Letterplace and Determinantal Ideals
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P-分区的偏序集理想和广义字母位置和行列式理想

DOI:
10.1007/s40306-018-0262-3
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发表时间:
2017
影响因子:
0.5
通讯作者:
Gunnar Fløystad
Gunnar Fløystad
中科院分区:
--
文献类型:
--
作者:
Gunnar Fløystad

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对于任何有限偏序集P,我们有保序映射的偏序集,也称为-分拆。对于任何偏序集理想,无论是有限的还是无限的,我们都将单项理想:字母位理想和亚历山大对偶的共同字母位理想联系起来,并研究它们。我们得到了一类称为P-稳定的单项理想。当P是链时,我们在强稳定理想上建立了对偶。我们研究了主偏序集理想的情形。当P是链时,我们构造了一类新的行列式理想,它是极大子式理想的推广,其初始理想是主子序集理想的字母位置理想。
For any finite posetP, we have the poset of isotone maps, also called-partitions. To any poset idealin, finite or infinite, we associate monomial ideals: the letterplace idealand the Alexander dual co-letterplace ideal, and study them. We derive a class of monomial ideals incalledP-stable. WhenPis a chain, we establish a duality on strongly stable ideals. We study the case whenis a principal poset ideal. WhenPis a chain, we construct a new class of determinantal ideals which generalizes ideals ofmaximalminors and whose initial ideals are letterplace ideals of principal poset ideals.