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

P. 205-224.

Takebe T.

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.

Ключевые слова: WZW model, elliptic KZ equation, conformal field theory, factorisation, trigonometric degeneration

В книге

Progress in Mathematics

Под редакцией: 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.