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Point equivalence of second-order ordinary differential equations to the fifth Painlevé equation with one and two nonzero parameters
Yu. Yu. Bagderina Institute of Mathematics with Computing Centre, Ufa Federal
Research Centre of Russian Academy of Science, Ufa, Russia
Abstract:
We consider the problem of the equivalence of scalar second-order ordinary differential equations under invertible point transformations. To solve this problem in the case of Painlevé equations, we use previously constructed invariants of a family of equations whose right-hand sides have a cubic nonlinearity in the first derivative. We obtain the conditions for point equivalence to the fifth Painlevé equation if two or three of its parameters are equal to zero.
Keywords:
Painlevé equation, equivalence, invariant.
Received: 30.08.2019 Revised: 27.09.2019
Citation:
Yu. Yu. Bagderina, “Point equivalence of second-order ordinary differential equations to the fifth Painlevé equation with one and two nonzero parameters”, TMF, 202:3 (2020), 339–352; Theoret. and Math. Phys., 202:3 (2020), 295–308
Linking options:
https://www.mathnet.ru/eng/tmf9802https://doi.org/10.4213/tmf9802 https://www.mathnet.ru/eng/tmf/v202/i3/p339
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