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math.RT2015
Affine zigzag algebras and imaginary strata for KLR algebras
Alexander Kleshchev, Robert Muth
KLR algebras of affine ADE types are known to be properly stratified if the characteristic of the ground field is greater than some explicit bound. Understanding the strata of this…
math.RT2015
Stratifying KLR algebras of affine ADE types
Alexander Kleshchev, Robert Muth
We generalize imaginary Howe duality for KLR algebras of affine ADE types, developed in our previous paper, from balanced to arbitrary convex preorders. Under the assumption that t…