54 citations · 182 across the 9 of their papers we have counts for
9 papers
Quadratic integrals of a multi-scalar cosmological model
Sameerah Jamal
In the context of FRW spacetime with zero spatial curvature, we consider a multi-scalar tensor cosmology model under the pretext of obtaining quadratic conservation laws. We propos…
A Study of the Approximate Singular Lagrangian -- Conditional Noether Symmetries and First Integrals
Sameerah Jamal
The investigation of approximate symmetries of reparametrization invariant Lagrangians of n + 1 degrees of freedom and quadratic velocities is presented. We show that extra conditi…
Approximate conditions admitted by classes of the Lagrangian
Sameerah Jamal, Nkosingiphile Mnguni
We investigate a class of Lagrangians that admit a type of perturbed harmonic oscillator which occupies a special place in the literature surrounding perturbation theory. We establ…
Nonlocal Representation of the Algebra for the Chazy equation
Andronikos Paliathanasis, Sameerah Jamal, P. G. L. Leach
A demonstration of how the point symmetries of the Chazy Equation become nonlocal symmetries for the reduced equation is discussed. Moreover we construct an equivalent third-order…
Solutions of quasi-geostrophic turbulence in multi-layered configurations
Sameerah Jamal
We consider quasi-geostrophic (Q-G) models in two- and three-layers that are useful in theoretical studies of planetary atmospheres and oceans. In these models, the streamfunctions…
Approximate Noether Symmetries and Collineations for Regular Perturbative Lagrangians
Andronikos Paliathanasis, Sameerah Jamal
Regular perturbative Lagrangians that admit approximate Noether symmetries and approximate conservation laws are studied. Specifically, we investigate the connection between approx…