4 papers
Imaginary Schur-Weyl duality for quiver Hecke superalgebras
Alexander Kleshchev
The irreducible modules over quiver Hecke superalgebras can be classified in terms of cuspidal modules. To an indivisible positive root and a non-negative integer ,…
RoCK blocks of double covers of symmetric groups and generalized Schur algebras
Alexander Kleshchev
We study blocks of the double covers of symmetric and alternating groups. The main result is a `local' description, up to Morita equivalence, of arbitrary defect RoCK blocks of the…
On dimensions of RoCK blocks of cyclotomic quiver Hecke superalgebras
Alexander Kleshchev
We explicitly compute the dimensions of certain idempotent truncations of RoCK blocks of cyclotomic quiver Hecke superalgebras. Equivalently, this amounts to a computation of the v…
On maximally symmetric subalgebras
Alexander Kleshchev
Let $\k$ be a characteristic zero PID, be a $\k$-algebra and be a full rank subalgebra. Suppose the algebra is symmetric. It is important to know when is…