Novel Symmetry of Non-Einsteinian Gravity in Two Dimensions

Details Novel Symmetry of Non-Einsteinian Gravity in Two Dimensions Novel Symmetry of Non-Einsteinian Gravity in Two Dimensions

1992-05-20

arxiv.org/abs/hep-th/9205071v1

J.Math.Phys.33:3892-3900,1992

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, TUW-92-04 (LaTeX)

Scientific paper

10.1063/1.529836

The integrability of $R^2$-gravity with torsion in two dimensions is traced to an ultralocal dynamical symmetry of constraints and momenta in Hamiltonian phase space. It may be interpreted as a quadratically deformed $iso(2,1)$-algebra with the deformation consisting of the Casimir operators of the undeformed algebra. The locally conserved quantity encountered in the explicit solution is identified as an element of the centre of this algebra. Specific contractions of the algebra are related to specific limits of the explicit solutions of this model.

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