Physics – Mathematical Physics
Scientific paper
2011-12-03
Physics
Mathematical Physics
Paper presented at International Balkan Workshop of Applied Physics (IBWAP), Constanta (Romania), 2010
Scientific paper
The paper takles a procedure which allow to extend some linear, wave type equations to the study of nonlinear models. More concretely, we present a practical way to generate the largest class of a given form of second order differential equations in (1+1)-dimensions which generalizes the differential equation describing the equatorial trapped waves generated in a continuously stratified ocean. This class will be obtained following the Lie symmetry and similarity reduction procedures. As a result, some concrete nonlinear second order differential equations will be proposed as possible candidates for replacing more complicated, nonintegrable systems, as the Rossby type equation. Keywords: Nonlinear dynamical systems, Lie symmetries, Similarity reduction procedure, Rossby type symmetries.
Cimpoiasu Rodica
Constantinescu Radu
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