Journal of Pure and Applied Algebra ( IF 0.8 ) Pub Date : 2020-10-13 , DOI: 10.1016/j.jpaa.2020.106594 Qiang Fu
Let be the quantized enveloping algebra of over and be the natural representation of , where v is an indeterminate. There is a natural right action of the Hecke algebra of the symmetric group on , commuting with the action of . It is well known that the natural algebra homomorphisms and are surjective, where is the quantum Schur algebras over . Given an associative algebra , let be the center of . In this paper, we prove that the maps and preserve the center. That is, we prove that and . It should be noted that when v is specialized to a primitive root of unity ε in , is not equal to in general, where is quantum over at parameter ε. Finally, we use bases of the center of the Hecke algebra to construct bases of the center of the quantum Schur algebra .
中文翻译:
Schur–Weyl对偶性与量子Schur代数的中心
让 是...的量化包络代数 过度 和 是...的自然代表 ,其中v是不确定的。Hecke代数有自然的正确作用 对称群的 上 ,与 。众所周知,自然代数同态 和 是排斥的,在哪里 是量子Schur代数 。给定一个关联代数,让 成为...的中心 。在本文中,我们证明了这些地图 和 保留中心。也就是说,我们证明 和 。应当注意的是,当v是专门统一的原根ε在, 不等于 一般来说,哪里 是量子的 过度 在参数ε处。最后,我们使用Hecke代数中心的基数 构造量子舒尔代数中心的基 。