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Quantum loop modules
Author(s):
Vyjayanthi
Chari;
Jacob
Greenstein
Journal:
Represent. Theory
7
(2003),
56-80.
MSC (2000):
Primary 17B67
Posted:
February 26, 2003
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Abstract:
We classify the simple infinite-dimensional integrable modules with finite-dimensional weight spaces over the quantized enveloping algebra of an untwisted affine algebra. We prove that these are either highest (lowest) weight integrable modules or simple submodules of a loop module of a finite-dimensional simple integrable module and describe the latter class. Their characters and crystal basis theory are discussed in a special case.
References:
- 1.
- T. Akasaka and M. Kashiwara, Finite-dimensional representations of quantum affine algebras, Publ. Res. Inst. Math. Sci. 33 (1997), no. 5, 839-867. MR 99d:17017
- 2.
- J. Beck, Braid group action and quantum affine algebras, Comm. Math. Phys. 165 (1994), no. 3, 555-568. MR 95i:17011
- 3.
- J. Beck, V. Chari and A. Pressley, An algebraic characterization of the affine canonical basis. Duke Math. J. 99 (1999), no. 3, 455-487. MR 2000g:17013
- 4.
- V. Chari, Integrable representations of affine Lie algebras, Invent. Math. 85 (1986), no. 2, 317-335. MR 88a:17034
- 5.
- -, Braid group actions and tensor products. Internat. Math. Res. Notices (2002), no. 7, 357-382. MR 2003a:17014
- 6.
- V. Chari and A. Pressley, New unitary representations of loop groups, Math. Ann. 275 (1986), no. 1, 87-104. MR 88f:17029
- 7.
- -, Quantum affine algebras, Comm. Math. Phys. 142 (1991), no. 2, 261-283. MR 93d:17017
- 8.
- -, A guide to quantum groups, Corrected reprint of the 1994 original, Cambridge Univ. Press, Cambridge, 1995. MR 96h:17014
- 9.
- -, Weyl modules for classical and quantum affine algebras. Represent. Theory 5 (2001), 191-223. MR 2002g:17027
- 10.
- V. G. Drinfel
d, A new realization of Yangians and of quantum affine algebras, Dokl. Akad. Nauk SSSR 296 (1987), no. 1, 13-17. MR 88j:17020 - 11.
- P. Etingof and A. Moura, Elliptic Central Characters and Blocks of Finite Dimensional Representations of Quantum Affine Algebras, Preprint math.QA/0204302.
- 12.
- E. Frenkel and E. Mukhin, Combinatorics of
-characters of finite-dimensional representations of quantum affine algebras, Comm. Math. Phys. 216 (2001), no. 1, 23-57. MR 2002c:17023 - 13.
- E. Frenkel and N. Reshetikhin, The
-characters of representations of quantum affine algebras and deformations of -algebras, Recent developments in quantum affine algebras and related topics (Raleigh, NC, 1998), Contemp. Math., 248, Amer. Math. Soc., Providence, RI, 1999, pp. 163-205. MR 2002f:17022 - 14.
- J. Greenstein, Characters of simple bounded modules over an untwisted affine Lie algebra, Algebr. Represent. Theory (to appear).
- 15.
- -, Littelmann's path crystal and combinatorics of certain integrable
modules of level zero. J. Algebra (to appear). - 16.
- M. Kashiwara, On crystal bases of the
-analogue of universal enveloping algebras, Duke Math. J. 63 (1991), no. 2, 465-516. MR 93b:17045 - 17.
- -, The crystal base and Littelmann's refined Demazure character formula, Duke Math. J. 71 (1993), no. 3, 839-858. MR 95b:17019
- 18.
- -, On level-zero representation of quantized affine algebras., Duke Math. J. 112 (2002), no. 1, 117-195. MR 2002m:17013
- 19.
- N. Jing, On Drinfeld realization of quantum affine algebras, The Monster and Lie algebras (Columbus, OH, 1996), de Gruyter, Berlin, 1998, pp. 195-206. MR 99j:17021
- 20.
- A. Joseph, A completion of the quantized enveloping algebra of a Kac-Moody algebra, J. Algebra 214 (1999), no. 1, 235-275. MR 2001f:17024
- 21.
- -, The admissibility of bounded modules for an affine Lie algebra, Algebr. Represent. Theory, 3 (2000), no. 2, 131-149. MR 2001e:17019
- 22.
- A. Joseph and D. Todoric, On the quantum KPRV determinants for semisimple and affine Lie algebras, Algebr. Represent. Theory 5 (2002), no. 1, 57-99.
- 23.
- G. Lusztig, Quantum deformations of certain simple modules over enveloping algebras, Adv. in Math. 70 (1988), no. 2, 237-249. MR 89k:17029
- 24.
- -, Introduction to quantum groups, Birkhäuser Boston Inc., Boston, MA, 1993. MR 94m:17016
- 25.
- H. Nakajima,
-analogue of the -characters of finite dimensional representations of quantum affine algebras, Physics and combinatorics, 2000 (Nagoya), 196-219, World Sci. Publishing, River Edge, NJ, 2001. MR 2003b:17020 - 26.
- -, Extremal weight modules of quantum affine algebras, Preprint math.QA/0204183.
- 27.
- M. Varagnolo and E. Vasserot, Standard modules of quantum affine algebras, Duke Math. J. 111 (2002), no. 3, 509-533.
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Additional Information:
Vyjayanthi
Chari
Affiliation:
Department of Mathematics, University of California, Riverside, California 92521
Email:
chari@math.ucr.edu
Jacob
Greenstein
Affiliation:
Institut de Mathématiques de Jussieu, Université Pierre et Marie Curie, 175 rue du Chevaleret, Plateau 7D, F-75013 Paris, France
Email:
greenste@math.jussieu.fr
DOI:
10.1090/S1088-4165-03-00168-7
PII:
S 1088-4165(03)00168-7
Received by editor(s):
June 28, 2002
Received by editor(s) in revised form:
October 25, 2002
Posted:
February 26, 2003
Dedicated:
Dedicated to Anthony Joseph on the occasion of his 60th birthday
Copyright of article:
Copyright
2003,
American Mathematical Society
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