We analyse Einstein equations with a scalar field by means of a computer algebra program, testing for the existence of alternative Lagrangians. After proposing an algebraic test, we apply it to both the cases of minimal and nonminimal coupling between gravity and the scalar field.

Einstein equations and alternative Lagrangians

DE RITIS, RUGGIERO;RUBANO, CLAUDIO;SCUDELLARO, PAOLO
1995

Abstract

We analyse Einstein equations with a scalar field by means of a computer algebra program, testing for the existence of alternative Lagrangians. After proposing an algebraic test, we apply it to both the cases of minimal and nonminimal coupling between gravity and the scalar field.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/162629
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