Harish-Chandra homomorphisms and symplectic reflection algebras for wreath-products

Pavel Etingof; Wee Liang Gan; Victor Ginzburg; Alexei Oblomkov

Publications Mathématiques de l'IHÉS (2007)

  • Volume: 105, page 91-155
  • ISSN: 0073-8301

Abstract

top
The main result of the paper is a natural construction of the spherical subalgebra in a symplectic reflection algebra associated with a wreath-product in terms of quantum hamiltonian reduction of an algebra of differential operators on a representation space of an extended Dynkin quiver. The existence of such a construction has been conjectured in [EG]. We also present a new approach to reflection functors and shift functors for generalized preprojective algebras and symplectic reflection algebras associated with wreath-products.

How to cite

top

Etingof, Pavel, et al. "Harish-Chandra homomorphisms and symplectic reflection algebras for wreath-products." Publications Mathématiques de l'IHÉS 105 (2007): 91-155. <http://eudml.org/doc/104226>.

@article{Etingof2007,
abstract = {The main result of the paper is a natural construction of the spherical subalgebra in a symplectic reflection algebra associated with a wreath-product in terms of quantum hamiltonian reduction of an algebra of differential operators on a representation space of an extended Dynkin quiver. The existence of such a construction has been conjectured in [EG]. We also present a new approach to reflection functors and shift functors for generalized preprojective algebras and symplectic reflection algebras associated with wreath-products.},
author = {Etingof, Pavel, Gan, Wee Liang, Ginzburg, Victor, Oblomkov, Alexei},
journal = {Publications Mathématiques de l'IHÉS},
keywords = {spherical subalgebras; symplectic reflection algebras; wreath products; quantum Hamiltonian reductions; algebras of differential operators; representation spaces; extended Dynkin quivers; reflection functors; generalized preprojective algebras},
language = {eng},
pages = {91-155},
publisher = {Springer},
title = {Harish-Chandra homomorphisms and symplectic reflection algebras for wreath-products},
url = {http://eudml.org/doc/104226},
volume = {105},
year = {2007},
}

TY - JOUR
AU - Etingof, Pavel
AU - Gan, Wee Liang
AU - Ginzburg, Victor
AU - Oblomkov, Alexei
TI - Harish-Chandra homomorphisms and symplectic reflection algebras for wreath-products
JO - Publications Mathématiques de l'IHÉS
PY - 2007
PB - Springer
VL - 105
SP - 91
EP - 155
AB - The main result of the paper is a natural construction of the spherical subalgebra in a symplectic reflection algebra associated with a wreath-product in terms of quantum hamiltonian reduction of an algebra of differential operators on a representation space of an extended Dynkin quiver. The existence of such a construction has been conjectured in [EG]. We also present a new approach to reflection functors and shift functors for generalized preprojective algebras and symplectic reflection algebras associated with wreath-products.
LA - eng
KW - spherical subalgebras; symplectic reflection algebras; wreath products; quantum Hamiltonian reductions; algebras of differential operators; representation spaces; extended Dynkin quivers; reflection functors; generalized preprojective algebras
UR - http://eudml.org/doc/104226
ER -

References

top
  1. 1. A. Beilinson and J. Bernstein, A proof of Jantzen conjectures, I. M. Gelfand Seminar, Adv. Soviet Math., vol. 16, part 1, pp. 1–50, Amer. Math. Soc., Providence, RI, 1993. Zbl0790.22007MR1237825
  2. 2. Y. Berest, P. Etingof, V. Ginzburg, Cherednik algebras and differential operators on quasi-invariants, Duke Math. J., 118 (2003), 279-337 Zbl1067.16047MR1980996
  3. 3. R. Bezrukavnikov, M. Finkelberg, V. Ginzburg, with an Appendix by P. Etingof, Cherednik algebras and Hilbert schemes in characteristic p, Represent. Theory, 10 (2006), 254-298 Zbl1130.14005MR2219114
  4. 4. M. Boyarchenko, Quantization of minimal resolutions of Kleinian singularities, Adv. Math., 211 (2007), 244-265 Zbl1138.16012MR2313534
  5. 5. W. Crawley-Boevey, Decomposition of Marsden–Weinstein reductions for representations of quivers, Compos. Math., 130 (2002), 225-239 Zbl1031.16013MR1883820
  6. 6. W. Crawley-Boevey, M.P. Holland, Noncommutative deformations of Kleinian singularities, Duke Math. J., 92 (1998), 605-635 Zbl0974.16007MR1620538
  7. 7. C. Dunkl, E. Opdam, Dunkl operators for complex reflection groups, Proc. London Math. Soc., 86 (2003), 70-108 Zbl1042.20025MR1971464
  8. 8. P. Etingof, Cherednik and Hecke algebras of varieties with a finite group action, preprint. math.QA/0406499. 
  9. 9. P. Etingof, V. Ginzburg, Symplectic reflection algebras, Calogero–Moser space, and deformed Harish–Chandra homomorphism, Invent. Math., 147 (2002), 243-348 Zbl1061.16032MR1881922
  10. 10. P. Etingof, V. Ginzburg and E. Rains, in preparation. 
  11. 11. W.L. Gan, Reflection functors and symplectic reflection algebras for wreath products, Adv. Math., 205 (2006), 599-630 Zbl1160.16008MR2258267
  12. 12. W.L. Gan, V. Ginzburg, Deformed preprojective algebras and symplectic reflection algebras for wreath products, J. Algebra, 283 (2005), 350-363 Zbl1133.16013MR2102087
  13. 13. W. L. Gan and V. Ginzburg, Almost-commuting variety, D-modules, and Cherednik algebras, IMPR, Int. Math. Res. Pap., 2006 (2006), Article ID 26439. math.RT/0409262. Zbl1158.14006MR2210660
  14. 14. I. Gordon, A remark on rational Cherednik algebras and differential operators on the cyclic quiver, Glasg. Math. J., 48 (2006), 145-160 Zbl1169.16302MR2224935
  15. 15. I. Gordon and J. T. Stafford, Rational Cherednik algebras and Hilbert schemes I, II, Adv. Math., 198 (2005), 222–274 and Duke Math. J., 132 (2006), 73–135. math.RA/0407516 and math.RT/0410293. Zbl1084.14005MR2183255
  16. 16. N. Guay, Cherednik algebras and Yangians, Int. Math. Res. Not., 2005 (2005), 3551-3593 Zbl1096.20006MR2199856
  17. 17. N. Guay, Affine Yangians and deformed double current algebras in type A, Adv. Math., 211 (2007), 436-484 Zbl1142.17008MR2323534
  18. 18. N. Guay, Quantum algebras and symplectic reflection algebras for wreath products, preprint. Zbl1208.17015
  19. 19. M.P. Holland, Quantization of the Marsden–Weinstein reduction for extended Dynkin quivers, Ann. Sci. Éc. Norm. Supér., IV. Sér., 32 (1999), 813-834 Zbl1036.16024MR1717577
  20. 20. P.B. Kronheimer, The construction of ALE spaces as hyper-Kahler quotients, J. Differ. Geom., 29 (1989), 665-683 Zbl0671.53045MR992334
  21. 21. G. Lusztig, Quivers, Perverse sheaves, and quantized enveloping algebras, J. Amer. Math. Soc., 4 (1991), 365-421 Zbl0738.17011MR1088333
  22. 22. G. Lusztig, Quiver varieties and Weyl group actions, Ann. Inst. Fourier, 50 (2000), 461-489 Zbl0958.20036MR1775358
  23. 23. A. Maffei, A remark on quiver varieties and Weyl groups, Ann. Sc. Norm. Super. Pisa, Cl. Sci. (5), 1 (2002), 649-686 Zbl1143.14309MR1990675
  24. 24. A. Mellit, Kleinian singularities and algebras generated by elements that have given spectra and satisfy a scalar sum relation, Algebra Discrete Math., 2004 (2004), 89-110 Zbl1072.14006MR2146107
  25. 25. S. Montarani, Finite dimensional representations of symplectic reflection algebras associated to wreath products II, preprint. math.RT/0501156. Zbl1157.16303MR2336007
  26. 26. I. Musson, Hilbert schemes and noncommutative deformations of type A Kleinian singularities, J. Algebra, 293 (2005), 102-129 Zbl1082.14008MR2173968
  27. 27. H. Nakajima, Reflection functors for quiver varieties and Weyl group actions, Math. Ann., 327 (2003), 671-721 Zbl1060.16017MR2023313
  28. 28. A. Oblomkov, Deformed Harish–Chandra homomorphism for the cyclic quiver, preprint. math.RT/0504395. Zbl1169.16013MR2318640
  29. 29. C. Ringel, The rational invariants of the tame quivers, Invent. Math., 58 (1980), 217-239 Zbl0433.15009MR571574
  30. 30. J.-L. Verdier, Stratifications de Whitney et théorème de Bertini–Sard, Invent. Math., 36 (1976), 295-312 Zbl0333.32010MR481096

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.