General form of axially symmetric stationary metric: exact solutions and conservation laws in vacuum fields
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Date
2023-06-24T00:00:00
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Institute of Physics
Abstract
The invariant non-static solutions of Einstein�s vacuum field equations, corresponding to the most general form of axially symmetric stationary line element that represents a non conformally flat semi-Riemannian spacetime in cylindrical coordinates, are investigated. Lie symmetry method is used for symmetry reduction as well as for obtaining exact solutions in terms of arbitrary functions. The conservation laws are obtained for vacuum equations in axially symmetric gravitational fields. The solutions of Lewis metric and Chandrasekhar metric, are derived from the obtained solutions. By considering the possibilities of arbitrary functions, the graphical behaviour of the solutions is also shown. � 2023 IOP Publishing Ltd.
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Keywords
axially symmetric gravitational fields, conservation laws, Einstein equation, invariant solutions, lie symmetry, vacuum