• Conservation laws and solution of the geodesic system of Gödel’s metric via Lie and Noether symmetries

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      https://www.ias.ac.in/article/fulltext/pram/096/0121

    • Keywords

       

      Geodesic equations; Lie symmetries; Noether symmetries; isometries.

    • Abstract

       

      We consider the geodesic system for Gödel’s metric as a toy model and solve it analytically using its Lie point symmetries. It is shown that the differential invariants of these symmetries reduce the second-order non-linear system to a single second-order ordinary differential equation (ODE). Invariance of the latter under a one-dimensional Lie point symmetry group reduces it to an integrable first-order ODE. A complete solution of the system is then achieved. The sub-algebras of Noether symmetries and isometries are then found with their corresponding first integrals.

    • Author Affiliations

       

      F ALKINDI1 A H KARA2 M ZIAD2

      1. General Directorate of Education of A’ddakhiliyah Province, Ministry of Education, Sultanate of Oman
      2. School of Mathematics, University of the Witwatersrand, Johannesburg, South Africa
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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