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Area-preserving structure of 2d-gravity

D. R. Karakhanyan, R. P. Manvelyan, R. L. Mkrtchyan

hep-tharXiv:hep-th/9401031

Abstract

The effective action for 2d-gravity with manifest area-preserving invariance is obtained in the flat and in the general gravitational background. The cocyclic properties of the last action are proved, and generalizations on higher dimensions are discussed.

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