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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.33 no.s1 (2006), pp. 792-799
Lie Symmetries and Constrained Dynamical Systems
R. Cimpoiasu, R. Constantinescu
University of Craiova, 13 A.I.Cuza, 200585 Craiova, Romania
go backUniversity of Craiova, 13 A.I.Cuza, 200585 Craiova, Romania
Abstract. The paper presents two symmetry problems: the direct one which implies the BRST symmetries for dynamical systems with constraints and an inverse one which deals with conditional symmetries. As an application, the Lie symmetries and the conditional problem are discussed for the 2D Ricci flow model.