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Representation type of finite quiver Hecke algebras of type $A^{(1)}_{\ell}$ for arbitrary parameters (1311.4677v2)

Published 19 Nov 2013 in math.RT

Abstract: We give Erdmann-Nakano type theorem for the finite quiver Hecke algebras $R{\Lambda_0}(\beta)$ of affine type $A{(1)}_{\ell}$. Note that each finite quiver Hecke algebra lies in one parameter family, and the original Erdmann-Nakano theorem studied the finite quiver Hecke algebra at a special parameter value. We study the general case in our paper. Our result shows in particular that their representation type does not depend on the parameter. Moreover, when the parameter value is nonzero, we show that finite quiver Hecke algebras of tame representation type are biserial algebras.

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