On category O for cyclotomic rational Cherednik algebras

Iain Gordon, Ivan Losev

Research output: Contribution to journalArticlepeer-review

Abstract

We study equivalences for category Op of the rational Cherednik algebras Hp of type G_l(n)=(μ_l)n⋊Sn: a highest weight equivalence between O(p) and O(σ(p)) for σ∈S_l and an action of S_l on an explicit non-empty Zariski open set of parameters p; a derived equivalence between O(p) and O(p′) whenever p and p′ have integral difference; a highest weight equivalence between O(p) and a parabolic category O for the general linear group, under a non-rationality assumption on the parameter p. As a consequence, we confirm special cases of conjectures of Etingof and of Rouquier.
Original languageEnglish
Pages (from-to)1017-1079
Number of pages63
JournalJournal of the European Mathematical Society
Volume16
Issue number5
DOIs
Publication statusPublished - 18 May 2014

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