Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)


SIGMA 6 (2010), 022, 12 pages      arXiv:0911.2579      https://doi.org/10.3842/SIGMA.2010.022
Contribution to the Proceedings of the Workshop “Geometric Aspects of Discrete and Ultra-Discrete Integrable Systems”

Zero Action on Perfect Crystals for Uq(G2(1))

Kailash C. Misra a, Mahathir Mohamad b and Masato Okado b
a) Department of Mathematics, North Carolina State University, Raleigh, North Carolina 27695-8205, USA
b) Department of Mathematical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

Received November 13, 2009, in final form March 03, 2010; Published online March 09, 2010

Abstract
The actions of 0-Kashiwara operators on the Uq'(G2(1))-crystal Bl in [Yamane S., J. Algebra 210 (1998), 440-486] are made explicit by using a similarity technique from that of a Uq'(D4(3))-crystal. It is shown that {Bl}l ≥ 1 forms a coherent family of perfect crystals.

Key words: combinatorial representation theory; quantum affine algebra; crystal bases.

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References

  1. Kang S.-J., Kashiwara M., Misra K.C., Crystal bases of Verma modules for quantum affine Lie algebras, Compositio Math. 92 (1994), 299-325.
  2. Kang S.-J., Misra K.C., Crystal bases and tensor product decompositions of Uq(G2)-module, J. Algebra 163 (1994), 675-691.
  3. Kang S.-J., Kashiwara M., Misra K.C., Miwa T., Nakashima T., Nakayashiki A., Affine crystals and vertex models, in Infinite Analysis, Part A, B (Kyoto, 1991), Adv. Ser. Math. Phys., Vol. 16, World Sci. Publ., River Edge, NJ, 1992, 449-484.
  4. Kashiwara M., Crystal bases of modified quantized enveloping algebra, Duke Math. J. 73 (1994), 383-413.
  5. Kashiwara M., Similarity of crystal bases, in Lie Algebras and Their Representations (Seoul, 1995), Contemp. Math., Vol. 194, Amer. Math. Soc., Providence, RI, 1996, 177-186.
  6. Kashiwara M., Misra K.C., Okado M., Yamada D., Perfect crystals for Uq(D4(3)), J. Algebra 317 (2007), 392-423, math.QA/0610873.
  7. Yamane S., Perfect crystals of Uq(G2(1)), J. Algebra 210 (1998), 440-486, q-alg/9712012.


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