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math-ph2021
On Exact and Approximate Symmetries of Algebraic and Ordinary Differential Equations with a Small Parameter
Mahmood R. Tarayrah, Alexei F. Cheviakov
The framework of Baikov-Gazizov-Ibragimov approximate symmetries has proven useful for many examples where a small perturbation of an ordinary differential equation (ODE) destroys…
math-ph2015
Noether Symmetries of Bianchi Type II Spacetime Metrics
Mahmood Rajih Tarayrah, Hassan Azad, Ashfaque H. Bokhari +1
We classify a class of Bianchi type II spacetimes according to their Noether symmetries. We briefly discuss the conservation laws admitted by these Noether symmetries and classify…