Approximate Symmetries of Lagrangians for Plane Symmetric Gravitational Wave-like Spacetimes
نویسندگان
چکیده
Using Lie symmetry methods for differential equations we have investigated the symmetries of a Lagrangian for a plane symmetric static spacetime. Perturbing this Lagrangian we explore its approximate symmetries. It has a non-trivial first-order approximate symmetry.
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تاریخ انتشار 2009