首页> 外文期刊>Electronic Journal Of Combinatorics >Harmonic Bases for Generalized Coinvariant Algebras
【24h】

Harmonic Bases for Generalized Coinvariant Algebras

机译:广义辛瓦安代数的谐波碱基

获取原文
           

摘要

Let $k leq n$ be nonnegative integers and let $lambda$ be a partition of $k$. S. Griffin recently introduced a quotient $R_{n,lambda}$ of the polynomial ring  $mathbb{Q}[x_1, dots, x_n]$ in $n$ variables which simultaneously generalizes the  Delta Conjecture coinvariant rings of Haglund-Rhoades-Shimozono and the cohomology rings of Springer fibers studied by Tanisaki and Garsia-Procesi. We describe the space $V_{n,lambda}$ of harmonics attached to $R_{n,lambda}$  and produce a harmonic basis of $R_{n,lambda}$ indexed by certain ordered set partitions $mathcal{OP}_{n,lambda}$. The combinatorics of this basis is governed by a new extension of  the Lehmer code of a permutation to $mathcal{OP}_{n, lambda}$.
机译:让$ k leq n $是非负整数,让$ lambda $ be是$ k $的分区。 S. Griffin最近推出了一个商用R_ {n, lambda} $ mathbb {q} [x_1, dots,x_n] $ n $ n $变量,它同时概括了Haglund的德雷塔猜想币圆环-RHOODES-Shimozono和Tanisaki和Garsia-Procesi学习的弹簧纤维的混沌圈。我们将附加到$ r_ {n, lambda} $的空间$ v_ {n, lambda} $的空间$ r_ {n, lambda} $索引由某些有序集分区$ mathcal索引的$ r_ {n, lambda} $ {op} _ {n, lambda} $。此基础的组合学由Lehmer代码的新扩展为$ mathcal {op} _ {n, lambda} $。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号