3 papers
math.RT2016
A quantum subgroup depth
Alberto Hernandez, Lars Kadison, Samuel A. Lopes
The Green ring of the half quantum group is computed in [Chen, Van Oystaeyen, Zhang]. The tensor product formulas between indecomposables may be used for a generalized s…
math.RT2014
Subgroup depth and twisted coefficients
Alberto Hernandez, Lars Kadison, Marcin Szamotulski
Danz computes the depth of certain twisted group algebra extensions in Comm. Alg. (2011), which are less than the values of the depths of the corresponding untwisted group algebra…
math.RT2013
Algebraic quotient modules and subgroup depth
A. Hernandez, L. Kadison, C. J. Young
In arXiv:1210.3178 it was shown that subgroup depth may be computed from the permutation module of the left or right cosets: this holds more generally for a Hopf subalgebra, from w…