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- W4291923786 abstract "We study holonomic D-modules on SL_n(C)xC^n, called mirabolic modules, analogous to Lusztig's character sheaves. We describe the supports of simple mirabolic modules. We show that a mirabolic module is killed by the functor of Hamiltonian reduction from the category of mirabolic modules to the category of representations of the trigonometric Cherednik algebra if and only if the characteristic variety of the module is contained in the unstable locus. We introduce an analogue of the Verdier specialization functor for representations of Cherednik algebras which agrees, on category O, with the restriction functor of Bezrukavnikov and Etingof. In type A, we also consider a Verdier specialization functor on mirabolic D-modules. We show that Hamiltonian reduction intertwines specialization functors on mirabolic D-modules with the corresponding functors on representations of the Cherednik algebra. This allows us to apply known purity results for nearby cycles in the setting considered by Bezrukavnikov and Etingof." @default.
- W4291923786 created "2022-08-16" @default.
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- W4291923786 date "2012-07-07" @default.
- W4291923786 modified "2023-09-28" @default.
- W4291923786 title "Hamiltonian reduction and nearby cycles for Mirabolic D-modules" @default.
- W4291923786 doi "https://doi.org/10.48550/arxiv.1207.1797" @default.
- W4291923786 hasPublicationYear "2012" @default.
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