Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2009-02-06
Nonlinear Sciences
Exactly Solvable and Integrable Systems
Proceedings for 5-th World Congress for Nonlinear Analysts 2008, Florida, USA
Scientific paper
We review the free field realization of the deformed Virasoro algebra $Vir_{q,t}$ and the deformed $W$ algebra $W_{q,t}(\hat{gl_N})$. We explicitly construct two classes of infinitly many commutative operators ${\cal I}_m$, ${\cal G}_m$, $(m \in {\mathbb N})$, in terms of these algebras. They can be regarded as the elliptic deformation of the local and nonlocal integrals of motion for the conformal field theory.
Kojima Takeo
Shiraishi Jun'ichi
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