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The lattice Toda field theory and lattice Script W algebras for B2 and C2

Rei Inoue

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The lattice Toda field theory for finite-dimensional simple Lie algebras is studied. We show that the Poisson structure for the lattice Toda fields is closely related to that for the q-deformed Script W algebra. By making use of this relationship, we construct the lattice Script W algebra. We discuss the cases of B2 and C2 in detail, and associate them with the continuous theory.


PACS

05.50.+q Lattice theory and statistics (Ising, Potts, etc.)

02.30.Ik Integrable systems

02.20.Sv Lie algebras of Lie groups

MSC

37J35 Completely integrable systems, topological structure of phase space, integration methods

17Bxx Lie algebras and Lie superalgebras (For Lie groups, see 22Exx)

Subjects

Mathematical physics

Statistical physics and nonlinear systems

Dates

Issue 4 (1 February 2002)

Received 25 July 2001, in final form 9 November 2001

Published 18 January 2002



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