16 citations · 70 across the 36 of their papers we have counts for
4 papers · 1 filter
The non-projective part of the Lie module for the symmetric group
Karin Erdmann, Kai Meng Tan
The Lie module of the group algebra of the symmetric group is known to be not projective if and only if the characteristic of divides . We show that in this case…
The representation dimension of Hecke algebras and symmetric groups
Petter Andreas Bergh, Karin Erdmann
We establish a lower bound for the representation dimension of all the classical Hecke algebras of types A, B and D. For all the type A algebras, and most of the algebras of types…
Chebyshev polynomials on symmetric matrices
Karin Erdmann, Sibylle Schroll
In this paper we evaluate Chebyshev polynomials of the second-kind on a class of symmetric integer matrices, namely on adjacency matrices of simply laced Dynkin and extended Dynkin…
Radical cube zero weakly symmetric algebras and support varieties
Karin Erdmann, Øyvind Solberg
One of our main results is a classification all the weakly symmetric radical cube zero finite dimensional algebras over an algebraically closed field having a theory of support via…