Nonlocal symmetries of Riccati and Abel chains and their similarity reductions

Details Nonlocal symmetries of Riccati and Abel chains and their similarity reductions Nonlocal symmetries of Riccati and Abel chains and their similarity reductions

2012-02-21

arxiv.org/abs/1202.4593v1

Physics

Mathematical Physics

Accepted for publication in J. Math. Phys

Scientific paper

We study nonlocal symmetries and their similarity reductions of Riccati and Abel chains. Our results show that all the equations in Riccati chain share the same form of nonlocal symmetry. The similarity reduced $N^{th}$ order ordinary differential equation (ODE), $N=2, 3,4,...$, in this chain yields $(N-1)^{th}$ order ODE in the same chain. All the equations in the Abel chain also share the same form of nonlocal symmetry (which is different from the one that exist in Riccati chain) but the similarity reduced $N^{th}$ order ODE, $N=2, 3,4,$, in the Abel chain always ends at the $(N-1)^{th}$ order ODE in the Riccati chain. We describe the method of finding general solution of all the equations that appear in these chains from the nonlocal symmetry.

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