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Regular version of the site

Article

Trigonometric degeneration and orbifold Wess-Zumino-Witten model. I.

International Journal of Modern Physics A. 2004. Vol. 19, May suppl.. P. 418-435.

Trigonometric degeneration of the Baxter-Belavin elliptic r matrix is described by the degeneration of the twisted WZW model on elliptic curves. The spaces of conformal blocks and conformal coinvariants of the degenerate model are factorised into those of the orbifold WZW model.