Coloring Random Triangulations

Details Coloring Random Triangulations Coloring Random Triangulations

1997-11-06

arxiv.org/abs/cond-mat/9711050v1

Nucl.Phys. B516 (1998) 543-587

Physics

Condensed Matter

50 pages, 4 figures, Tex, uses harvmac, epsf

Scientific paper

10.1016/S0550-3213(98)00037-6

We introduce and solve a two-matrix model for the tri-coloring problem of the vertices of a random triangulation. We present three different solutions: (i) by orthogonal polynomial techniques (ii) by use of a discrete Hirota bilinear equation (iii) by direct expansion. The model is found to lie in the universality class of pure two-dimensional quantum gravity, despite the non-polynomiality of its potential.

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