Restriction and induction for supercharacters of finite groups of triangular type
arXiv:1610.04846 · doi:10.1070/SM8778
Abstract
It is proved the the restriction of any supercharacter of a finite group of triangular type on its subgroup is a sum of supercharacters with nonnegative integer coefficients. We define superinduction and prove the analog of the Frobenius formula for supercharacters.
18 pages