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Localization of Affine W-Algebras

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Abstract

We introduce the notion of an asymptotic algebra of chiral differential operators. We then construct, via a chiral Hamiltonian reduction, one such algebra over a resolution of the intersection of the Slodowy slice with the nilpotent cone. We compute the space of global sections of this algebra, thereby proving a localization theorem for affine W-algebras at the critical level.

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Correspondence to T. Kuwabara.

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Communicated by Y. Kawahigashi

T. Arakawa is partially supported by the JSPS Grant-in-Aid for Scientific Research (B) No. 20340007 and the JSPS Grant-in-Aid for challenging Exploratory Research No. 23654006.

T. Kuwabara was partially supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST)(2011-0027952).

F. Malikov is partially supported by an NSF grant.

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Arakawa, T., Kuwabara, T. & Malikov, F. Localization of Affine W-Algebras. Commun. Math. Phys. 335, 143–182 (2015). https://doi.org/10.1007/s00220-014-2183-x

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