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Classical Limit of the Scaled Elliptic Algebra ${\mathcal A}$ħ,η ($\widehat{\mathfrak sl}$2)

Published online by Cambridge University Press:  04 December 2007

S. KHOROSHKIN
Affiliation:
Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia; e-mail: khor@heron.itep.ru
D. LEBEDE
Affiliation:
Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia; e-mail: khor@heron.itep.ru
S. PAKULIAK
Affiliation:
Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Moscow region, Russia; e-mail: dlebedev@vitep5.itep.ru Bogoliubov Institute of Theoretical Physics, 252143 Kiev, Ukraine; e-mail: pakuliak@thsun1.jinr.ru
A. STOLIN
Affiliation:
Department of Mathematics, Göteborg University, S-41296 Göteborg, Sweden; e-mail: astolin@math.chalmers.se
V. TOLSTOY
Affiliation:
Institute of Nuclear Physics, Moscow State University, 119899 Moscow, Russia; e-mail: tolstoy@anna19.npi.msu.su
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Abstract

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The classical limit of the scaled elliptic algebra${\mathcal A}$ħ,η ($\widehat{\mathfrak sl}$2) is investigated. The limiting Lie algebra is described in two equivalent ways: as a central extension of the algebra of generalized automorphic sl2 valued functions on a strip and as an extended algebra of decreasing automorphic sl2 valued functions on the real line. A bialgebra structure and an infinite-dimensional representation in the Fock space are studied. The classical limit of elliptic algebra ${\mathcal A}$q,p ($\widehat{\mathfrak sl}$2) is also briefly presented.

Type
Research Article
Copyright
© 1999 Kluwer Academic Publishers