The nonlinear superposition principle and the Wei-Norman method

Details The nonlinear superposition principle and the Wei-Norman method The nonlinear superposition principle and the Wei-Norman method

1998-02-21

arxiv.org/abs/physics/9802041v1

Int.J.Mod.Phys.A13:3601-3627,1998

Physics

Mathematical Physics

Scientific paper

10.1142/S0217751X98001694

Group theoretical methods are used to study some properties of the Riccati equation, which is the only differential equation admitting a nonlinear superposition principle. The Wei-Norman method is applied to obtain the associated differential equation in the group $SL(2,R)$. The superposition principle for first order differential equation systems and Lie-Scheffers theorem are also analysed from this group theoretical perspective. Finally, the theory is applied in the solution of second order differential equations like time-independent Schroedinger equation

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