Abstract
Some elaboration is givent to the structure of physical states in 2D gravity coupled to C≤1 matter, and to the chiral algebra (w∞ of CM=1 theory which has been found recently, in the continuum approach, by Witten and by Klebanov and Polyakov. It is then shown that the chiral algebra is realized as well in the minimal models of gravity (CM<1), so that it stands as a general symmetry of 2D gravity theories.
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Dedicated to the memory of the late Professor M. C. Polivanov
L. D. Landau Institute of Theortetical Physics, Russian Academy of Sciences. LPTHE, Laboratoire associé No. 280 au CNRS, Universitè Pierre et Marie Curie, Paris VI, France. Published in Teoreticheskaya i Matematicheskaya Fizika, Vol. 92, No. 3, pp. 357–373, September, 1992.
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Dotsenko, V.S. Remarks on the physical states and the chiral algebra of 2D gravity coupled toC≤1 matter. Theor Math Phys 92, 938–951 (1992). https://doi.org/10.1007/BF01017072
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DOI: https://doi.org/10.1007/BF01017072