Sudhir R. Ghorpade and Christian Krattenthaler

Computation of the a-invariant of ladder determinantal rings

(20 pages)

Abstract. We solve the problem of effectively computing the $a$-invariant of ladder determinantal rings. In the case of a one-sided ladder, we provide a compact formula, while, for a large family of two-sided ladders, we provide an algorithmic solution.

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