Abstract
We study the possibility to establish L-operator's formalism by Faddeev–Reshetikhin–Takhtajan–Semenov-Tian-Shansky (FRST) for quantized current algebras, that is, for quantum affine algebras in the ‘new realization’ by V. Drinfeld with the corresponding Hopf algebra structure and for their Yangian counterpart. We establish this formalism using the twisting procedure by Tolstoy and the second author and explain the problems which on FRST approach encounters for quantized current algebras. We also show that, for the case of Uq(ŝln), entries of the L-operators of the FRTS type give the Drinfeld current operators for the nonsimple roots, which we discovered recently. As an application, we deduce the commutation relations between these current operators for Uq(ŝl3).
Similar content being viewed by others
References
Ding, J. and Feigin, B.: Quantum current operators (III): Commutative quantum current operators, semi-infinite construction and functional models, q-alg/9612009.
Ding, J. and Feigin, B.: Drinfeld realization and it KZ-equation, in preparation.
Ding, J. and Frenkel, B.: Isomorphism of two realizations of quantum affine algebra Uq (\({\mathfrak{g}}^ \wedge {\mathfrak{l}}\)((n)), Comm. Math. Phys. 156, (1993), 277-300.
Ding, J. and Iohara, K.: Generalization and deformation of Drinfeld quantum affine algebras, q-alg/9608002, RIMS-1091
Ding, J. and Iohara, K.: Drinfeld comultiplication and vertex operators, q-alg/9608003.
Ding, J. and Khoroshkin, S.: Weyl group extension of quantized current algebras, qalg/ 9804xxx.
Ding, J. and Miwa, T.: Zeros and poles of quantum current operators and the condition of quantum integrability, q-alg/9608001, RIMS-1092.
Drinfeld, V. G.: New realization of Yangian and quantum affine algebra, Soviet Math. Dokl. 36(1988), 212-216.
Drinfeld, V. G.: Hopf algebra and the quantum Yang-Baxter equation, Dokl. Akad. Nauk. SSS 283(1985).
Drinfeld, V. G.: Quasi-Hopf algebra, Algebra Anal. (Petersburg Math. J.)(1990), 1419-1457.
Drinfeld, V. G.: Quantum groups, Proc. ICM-86 (Berkeley USA) vol. 1, Amer. Math. Soc. Providence, 1987, pp. 798-820.
Enriquez, B. and Felder, G.: Elliptic quantum groups E τ,η (sl 2 ) and quasi-Hopf algebras, qalg/ 9703018.
Enriquez, B. and Felder, G.: A construction of Hopf algebra cocycles for the double Yangian DY(SL2), q-alg/9703012.
Frenkel, I. B. and Reshetikhin, N. Yu: Quantum affine algebras and holomorphic difference equation, Comm. Math. Phys. 146(1992), 1-60.
Faddeev, L. D., Reshetikhin, N. Yu and Takhtajan, L. A.: Quantization of Lie groups and Lie algebras, in: Yang-Baxter Equation in Integrable Systems, Adv. Series Math. Phys. 10, World Scientific, Singapore, 1989, 299-309.
Kedem, R.: Singular R-matrices and Drinfeld’s comultiplication, q-alg/9611001.
Khoroshkin, S., Lebedev, D. and Pakuliak, S.: Elliptic algebra A q,p (s \(\hat l\) 2 )in the scaling limit, q-alg/970200.
Khoroshkin, S., Stolin, A. and Tolstoy, V.: Generalized Gauss decomposition of trigonometric R-matrices, Modern Phys. Lett. A, 19(1995), 1375-1392.
Khoroshkin, S. M. and Tolstoy, V. N.: Twisting of quantum (super)algebras. Connection of Drinfeld’s and Cartan-Weyl realizations for quantum affine algebras, hep-th/9404036.
Khoroshkin, S. M. and Tolstoy, V. N.: Universal R-matrix for quantized (super)algebras, Comm. Math. Phys. 141(1991), 599-617.
Khoroshkin, S. M. and Tolstoy, V. N.: Yangian double, Lett. Math. Phys. 36(1996), 373-402.
Levendorskii, S. Z. and Soibelman, Ya. S.: Some application of quantum Weyl groups. The multiplicative formula for universal R-matrix for simple Lie algebras, Geom. Phys 7(4) (1990), 1-14.
Lusztig, G.: Canonical bases arising from quantized enveloping algebras, J. Amer. Math. Soc. 3(1990), 447-498.
Reshetikhin, N. Yu.: Multiparameter quantum groups and twisted quasitriangular Hopf algebras, Lett. Math. Phys. 20(1990), 331-335.
Reshetikhin, N. Yu and Semenov-Tian-Shansky, M. A.: Central extensions of quantum current groups, Lett. Math. Phys. 19(1990).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ding, J., Khoroshkin, S. On the FRTS Approach to Quantized Current Algebras. Letters in Mathematical Physics 45, 331–352 (1998). https://doi.org/10.1023/A:1007479807541
Issue Date:
DOI: https://doi.org/10.1023/A:1007479807541