Abstract
We construct a reparametrization invariant two-point function for c = −2 conformal matter coupled to two-dimensional quantum gravity. From the two-point function we extract the critical indices ν and η. The results support the quantum gravity version of Fissher's scaling relation. Our approach is based on the transfer matrix formalism and exploits the formulation of the c = −2 string as an O( n) model on a random lattice.
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