Poisson Traces for Symmetric Powers of Symplectic Varieties

We compute the space of Poisson traces on symmetric powers of affine symplectic varieties. In the case of symplectic vector spaces, we also consider the quotient by the diagonal translation action, which includes the quotient singularities T*C[superscript n-1]/S[subscript n] associated with the type...

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Main Authors: Etingof, Pavel I., Schedler, Travis
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:en_US
Published: Oxford University Press 2015
Online Access:http://hdl.handle.net/1721.1/92850
https://orcid.org/0000-0002-0710-1416
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author Etingof, Pavel I.
Schedler, Travis
author2 Massachusetts Institute of Technology. Department of Mathematics
author_facet Massachusetts Institute of Technology. Department of Mathematics
Etingof, Pavel I.
Schedler, Travis
author_sort Etingof, Pavel I.
collection MIT
description We compute the space of Poisson traces on symmetric powers of affine symplectic varieties. In the case of symplectic vector spaces, we also consider the quotient by the diagonal translation action, which includes the quotient singularities T*C[superscript n-1]/S[subscript n] associated with the type A Weyl group S[subscript n] and its reflection representation C[superscript n-1]. We also compute the full structure of the natural D-module, previously defined by the authors, whose solution space over algebraic distributions identifies with the space of Poisson traces. As a consequence, we deduce bounds on the numbers of finite-dimensional irreducible representations and prime ideals of quantizations of these varieties. Finally, motivated by these results, we pose conjectures on symplectic resolutions, and give related examples of the natural D-module. In an appendix, the second author computes the Poisson traces and associated D-module for the quotients T*C[superscript n]/D[subscript n] associated with type D Weyl groups. In a second appendix, the same author provides a direct proof of one of the main theorems.
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spelling mit-1721.1/928502022-09-26T13:00:54Z Poisson Traces for Symmetric Powers of Symplectic Varieties Etingof, Pavel I. Schedler, Travis Massachusetts Institute of Technology. Department of Mathematics Etingof, Pavel I. We compute the space of Poisson traces on symmetric powers of affine symplectic varieties. In the case of symplectic vector spaces, we also consider the quotient by the diagonal translation action, which includes the quotient singularities T*C[superscript n-1]/S[subscript n] associated with the type A Weyl group S[subscript n] and its reflection representation C[superscript n-1]. We also compute the full structure of the natural D-module, previously defined by the authors, whose solution space over algebraic distributions identifies with the space of Poisson traces. As a consequence, we deduce bounds on the numbers of finite-dimensional irreducible representations and prime ideals of quantizations of these varieties. Finally, motivated by these results, we pose conjectures on symplectic resolutions, and give related examples of the natural D-module. In an appendix, the second author computes the Poisson traces and associated D-module for the quotients T*C[superscript n]/D[subscript n] associated with type D Weyl groups. In a second appendix, the same author provides a direct proof of one of the main theorems. National Science Foundation (U.S.) (Grant DMS-1000113) 2015-01-14T14:58:28Z 2015-01-14T14:58:28Z 2013-03 2011-09 Article http://purl.org/eprint/type/JournalArticle 1073-7928 1687-0247 http://hdl.handle.net/1721.1/92850 Etingof, P., and T. Schedler. “Poisson Traces for Symmetric Powers of Symplectic Varieties.” International Mathematics Research Notices (March 21, 2013). https://orcid.org/0000-0002-0710-1416 en_US http://dx.doi.org/10.1093/imrn/rnt031 International Mathematics Research Notices Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Oxford University Press arXiv
spellingShingle Etingof, Pavel I.
Schedler, Travis
Poisson Traces for Symmetric Powers of Symplectic Varieties
title Poisson Traces for Symmetric Powers of Symplectic Varieties
title_full Poisson Traces for Symmetric Powers of Symplectic Varieties
title_fullStr Poisson Traces for Symmetric Powers of Symplectic Varieties
title_full_unstemmed Poisson Traces for Symmetric Powers of Symplectic Varieties
title_short Poisson Traces for Symmetric Powers of Symplectic Varieties
title_sort poisson traces for symmetric powers of symplectic varieties
url http://hdl.handle.net/1721.1/92850
https://orcid.org/0000-0002-0710-1416
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AT schedlertravis poissontracesforsymmetricpowersofsymplecticvarieties