%AMohammedi, N
%D1991
%I; International Centre for Theoretical Physics (ICTP), Trieste (Italy)
%J
%K72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS, GRAVITATION, ACTION INTEGRAL, ALGEBRA, CONFORMAL INVARIANCE, ENERGY-MOMENTUM TENSOR, METRICS, SCALAR FIELDS, SYMMETRY, 662100, GENERAL THEORY OF PARTICLES AND FIELDS
%PMedium: X; Size: 10 p.
%TConstant curvature and non-perturbative W{sub 3} gravity
%XWe show that the new classical action for two dimensional gravity (the Jackiw-Teitelboim model) possesses a W{sub 3} algebra. We quantise the resulting W{sub 3} gravity in the presence of matter fields with arbitrary central charges and obtain the critical exponents. The auxiliary field of the model, expressing the constancy of the scalar curvature, can be interpreted as one of the physical degrees of freedom of the W{sub 3} gravity. Our expressions are corrections to some previously published results for this model where the W{sub 3} symmetry was not accounted for. (author). 24 refs.
%0Technical Report
IAEA Other: ON: DE92616919; TRN: XA9230495017646 INIS English