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Regular version of the site

Book chapter

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

P. 205-224.

The sheaves of conformal blocks and conformal coinvariants of the twisted WZW model have a factorisation property and are locally free even at the boundary of the moduli space, where the elliptic KZ equations and the Baxter-Belavin elliptic r matrix degenerate to the trigonometric KZ equations and the trigonometric r matrix,o respectively. Etingof's construction of the elliptic KZ equations is geometrically interpreted.

In book

Edited by: P. P. Kulish, N. Manojlovic, H. Samtleben. Vol. 237: Infinite dimensional algebras and quantum integrable systems. Papers from the 14th International Congress on Mathematical Physics Satellite Workshop held at the University of Algarve, Faro, July 21–25, 2003.. Basel: Birkhäuser, 2005.