A Non-commutative Bgg Correspondence
نویسنده
چکیده
A non-commutative version of the Bernštĕın-GelfandGelfand (BGG) correspondence is set up, and a sample application is given to periodic injective resolutions. 0. Introduction The Bernštĕın-Gelfand-Gelfand correspondence is surprising. It gives an equivalence of categories gr(E) ≃ D(coh P). This was proved in [4, thm. 2] and as always, to explain such a formula requires lots of words. On the left hand side, E is the exterior algebra
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