Generalized q-deformed Correlation Functions as Spectral Functions of   Hyperbolic Geometry
  We analyse the role of vertex operator algebra and 2d amplitudes from the point of view of the representation theory of infinite dimensional Lie algebras, MacMahon and Ruelle functions. A p-dimensional MacMahon function is the generating function of p-dimensional partitions of integers. These functions can be represented as amplitudes of a two-dimensional c=1 CFT. In this paper we show that p-dimensional MacMahon functions can be rewritten in terms of Ruelle spectral functions, whose spectrum is encoded in the Patterson-Selberg function of three dimensional hyperbolic geometry. 
L. Bonora (SISSA/ISAS, Italy), A. A. Bytsenko (DF/UEL, Brazil) and M.   E. X. Guimar\~aes (IF/UFF, Brazil)
hep-th