Hochschild Cohomology Rings of Temperley-Lieb Algebras

Hochschild Cohomology Rings of Temperley-Lieb Algebras
复制标题

Temperley-Lieb 代数的 Hochschild 上同调环

DOI:
10.1007/s11401-015-0903-y
复制
发表时间:
2015
影响因子:
0.5
通讯作者:
Chen Yuan
Chen Yuan
中科院分区:
数学4区
文献类型:
--
作者:
Li Huanhuan;Xu Yunge;Chen Yuan

文献摘要

相似文献

首先构造了Temperley-Lieb代数A的一个显式极小投射双模分解(ε,δ),然后应用它计算了A的Hochschild上同调群和基于一个余乘映射Δ:ε → ε λ A ε的Hochschild上同调环的杯积.因此,通过生成元和关系的显式表示,确定了Temperley-Lieb代数和表示有限q-Schur代数的Hochschild上同调环在杯积下的乘法结构.
The authors first construct an explicit minimal projective bimodule resolution (ℙ, δ) of the Temperley-Lieb algebraA, and then apply it to calculate the Hochschild cohomology groups and the cup product of the Hochschild cohomology ring ofAbased on a comultiplicative map Δ: ℙ → ℙ ⊗Aℙ. As a consequence, the authors determine the multiplicative structure of Hochschild cohomology rings of both Temperley-Lieb algebras and representation-finiteq-Schur algebras under the cup product by giving an explicit presentation by generators and relations.