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arXiv · hep-th/0203103

Liouville theory, accessory parameters and 2+1 dimensional gravity

Luigi Cantini·Pietro Menotti·Domenico Seminara
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Abstract

We prove a relation between the asymptotic behavior of the conformal factor and the accessory parameters of the SU(1,1) Riemann- Hilbert problem. Such a relation shows the hamiltonian nature of the dynamics of N particles coupled to 2+1 dimensional gravity. A generalization of such a result is used to prove a connection between the regularized Liouville action and the accessory parameters in presence of general elliptic singularities. This relation had been conjectured by Polyakov in connection with 2-dimensional quantum gravity. An alternative proof, which works also in presence of parabolic singularities, is given by rewriting the regularized Liouville action in term of a background field.

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Luigi Cantini, Pietro Menotti, Domenico Seminara. 2002-03-12. Liouville theory, accessory parameters and 2+1 dimensional gravity. https://doi.org/10.1016/s0550-3213(02)00471-6

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