Linearizabiliy and Lax representations for cubic autonomous and non-autonomous nonlinear oscillators

DI Sinelshchikov - Physica D: Nonlinear Phenomena, 2023 - Elsevier
In this work we consider a family of cubic, with respect to the first derivative, second-order
ordinary differential equations. We study linearizability conditions for this family of equations …

Nonlocal transformations and linearization of second-order ordinary differential equations

C Muriel, JL Romero - Journal of Physics A: Mathematical and …, 2010 - iopscience.iop.org
The class of nonlinear second-order equations that are linearizable by means of
generalized Sundman transformations (S-transformations) is identified as the class of …

[HTML][HTML] Linearizability conditions for the Rayleigh-like oscillators

DI Sinelshchikov - Physics Letters A, 2020 - Elsevier
In this work we consider a family of nonlinear oscillators that is cubic with respect to the first
derivative. Particular members of this family of equations often appear in numerous …

On linearizability via nonlocal transformations and first integrals for second-order ordinary differential equations

DI Sinelshchikov - Chaos, Solitons & Fractals, 2020 - Elsevier
Nonlinear second-order ordinary differential equations are common in various fields of
science, such as physics, mechanics and biology. Here we provide a new family of …

Nonlocal symmetries, telescopic vector fields and λ-symmetries of ordinary differential equations

C Muriel, JL Romero - SIGMA. Symmetry, Integrability and Geometry …, 2012 - emis.de
This paper studies relationships between the order reductions of ordinary differential
equations derived by the existence of λ-symmetries, telescopic vector fields and some …

Nonlocal deformations of autonomous invariant curves for Liénard equations with quadratic damping

DI Sinelshchikov - Chaos, Solitons & Fractals, 2021 - Elsevier
We consider a family of nonlinear oscillators with quadratic damping, that generalizes the
Liénard equation. We show that certain nonlocal transformations preserve autonomous …

Linearization of Second-Order Non-Linear Ordinary Differential Equations: A Geometric Approach

M Tsamparlis - Symmetry, 2023 - mdpi.com
Using the coefficients of a system semilinear cubic in the first derivative second order
differential equations one defines a connection in the space of the independent and …

On the integrability of Liénard I-type equations via λ-symmetries and solvable structures

A Ruiz, C Muriel - Applied Mathematics and Computation, 2018 - Elsevier
For Liénard I-type equations it is proved the existence of a family of λ− symmetries such that
any of them lets the computation by quadratures of a time-dependent first integral of the …

Application of the generalised Sundman transformation to the linearisation of two second-order ordinary differential equations

S Moyo, SV Meleshko - Journal of Nonlinear Mathematical Physics, 2011 - Springer
In the literature, the generalized Sundman transformation has been used for obtaining
necessary and sufficient conditions for a single second-and third-order ordinary differential …

Nonlocal transformations of the generalized Liénard type equations and dissipative Ermakov-Milne-Pinney systems

P Guha, A Ghose-Choudhury - International Journal of Geometric …, 2019 - World Scientific
We employ the method of nonlocal generalized Sundman transformations to formulate the
linearization problem for equations of the generalized Liénard type and show that they may …