What is the quasi-hereditary cover of a quasi-hereditary algebra?

Is the algebra A somehow (always) a quasi-hereditary cover of itself? Or is their a relation to Ringel duality in some way?

MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

What is the quasi-hereditary cover of a quasi-hereditary algebra? Is the algebra A somehow (always) a quasi-hereditary cover of itself? Or is their a relation to Ringel duality in some way? |
|||

q-Schur algebras and complex reflection groups? – Martin Brandenburg Nov 8 '11 at 15:24