Conformal blocks and equivariant cohomology

Details Conformal blocks and equivariant cohomology Conformal blocks and equivariant cohomology

2010-07-19

arxiv.org/abs/1007.3155v2

Physics

Mathematical Physics

23 pages

Scientific paper

We show that the conformal blocks constructed in the previous article by the first and the third author may be described as certain integrals in equivariant cohomology. When the bundles of conformal blocks have rank one, this construction may be compared with the old integral formulas of the second and the third author. The proportionality coefficients are some Selberg type integrals which are computed. Finally, a geometric construction of the tensor products of vector representations of the Lie algebra $\frak{gl}(m)$ is proposed.

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