462 resultados para Poincaré lemma
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In this work we develop the canonical formalism for constrained systems with a finite number of degrees of freedom by making use of the PoincarCartan integral invariant method. A set of variables suitable for the reduction to the physical ones can be obtained by means of a canonical transformation. From the invariance of the PoincarCartan integral under canonical transformations we get the form of the equations of motion for the physical variables of the system.
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The relationship between the Poincar and Galilei groups allows us to write the Poincar wave equations for arbitrary spin as a Fourier transform of the Galilean ones. The relation between the Lagrangian formulation for both cases is also studied.
Poincar-Cartan intregral invariant and canonical trasformation for singular Lagrangians: an addendum
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The results of a previous work, concerning a method for performing the canonical formalism for constrained systems, are extended when the canonical transformation proposed in that paper is explicitly time dependent.
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A generalization of the predictive relativistic mechanics is studied where the initial conditions are taken on a general hypersurface of M4. The induced realizations of the Poincar group are obtained. The same procedure is used for the Galileo group. Noninteraction theorems are derived for both groups.
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Référence bibliographique : Rol, 54911
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Référence bibliographique : Rol, 54912
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Référence bibliographique : Rol, 54913
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Référence bibliographique : Rol, 54915
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Référence bibliographique : Rol, 54918
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Référence bibliographique : Rol, 54919
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Référence bibliographique : Rol, 55164
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Référence bibliographique : Rol, 55166