The center isomorphism conjecture for parabolic algebras

Let AκA_{\kappa} be a finite-dimensional algebra with Aκ-modOκA_{\kappa}\text{-mod}\cong\mathcal{O}^{\kappa}, and let eAκe\in A_{\kappa} be the maximal idempotent such that the left AκA_{\kappa}-module AκeA_{\kappa}e is injective. The center isomorphism conjecture. Inclusion eAκeAκeA_{\kappa}e\subset A_{\kappa} induces an isomorphism

Z(Aκ)Z(eAκe).Z(A_{\kappa})\cong Z(eA_{\kappa}e).

This generalizes the preceding center claim from An,nA_{n,n} to arbitrary parabolic algebras; the source gives no resolution.

Sources & referencesView supporting material

Primary source

Mikhail Khovanov, “Crossingless matchings and the cohomology of (n,n) Springer varieties”, arXiv:math/0202110 (2002).

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