Poincaré Series of Relative Symmetric Invariants for SLn(C)
Poincaré Series of Relative Symmetric Invariants for SLn(C)
复制标题
$text {SL}_{n}(mathbb {C})$ 的庞加莱相对对称不变量系列
DOI:
10.1007/s10468-020-09962-0
复制
发表时间:
2021
影响因子:
0.6
通讯作者:
Honglian Zhang
中科院分区:
文献类型:
--
作者:
Naihuan Jing;Danxia Wang;Honglian Zhang
Let (N,G), where, be a pair of finite groups andVa finite-dimensional fundamentalG-module. We study theG-invariants in the symmetric algebraS(V) = ⊕k≥ 0Sk(V) by giving explicit formulas of the Poincaré series for the induced modules and the restriction modules. In particular, this provides a uniform formula of the Poincaré series for the symmetric invariants in terms of the McKay-Slodowy correspondence. Moreover, we also derive a global version of the Poincaré series in terms of Tchebychev polynomials in the sense that one needs only the dimensions of the subgroups and their group-types to completely determine the Poincaré series.