Approximate Noether symmetries from geodetic Lagrangian for plane symmetric spacetimes
作者： Tooba Feroze , Farhad Ali
DOI: 10.1142/S0219887815501248
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摘要: Noether symmetries from geodetic Lagrangian for time-conformal plane symmetric spacetime are presented. Here, factor is used to find the approximate symmetries. This a generalization of idea discussed,5–6 where they obtained particular static spacetime. In present paper, most general considered and perturbed it by introducing eϵf(t), ϵ very small which causes perturbation in Taking up first-order, we all spacetimes exist.
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