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Inverse Jacobi multiplier as a link between conservative systems and Poisson structures

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Issue date
2017-07-15
Author
García, I. A. (Isaac A.)
Hernández Bermejo, Benito
Suggested citation
García, I. A. (Isaac A.); Hernández Bermejo, Benito; . (2017) . Inverse Jacobi multiplier as a link between conservative systems and Poisson structures. Journal of Physics A: Mathematical and Theoretical, 2017, vol. 50, p. 1-17. https://doi.org/10.1088/1751-8121/aa7bda.
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Abstract
Some aspects of the relationship between conservativeness of a dynamical system (namely the preservation of a finite measure) and the existence of a Poisson structure for that system are analyzed. From the local point of view, due to the Flow-Box Theorem we restrict ourselves to neighborhoods of singularities. In this sense, we characterize Poisson structures around the typical zero-Hopf singularity in dimension 3 under the assumption of having a local analytic first integral with non-vanishing first jet by connecting with the classical Poincar\'e center problem. From the global point of view, we connect the property of being strictly conservative (the invariant measure must be positive) with the existence of a Poisson structure depending on the phase space dimension. Finally, weak conservativeness in dimension two is introduced by the extension of inverse Jacobi multipliers as weak solutions of its defining partial differential equation and some of its applications are developed. Examples including Lotka-Volterra systems, quadratic isochronous centers, and non-smooth oscillators are provided.
URI
http://hdl.handle.net/10459.1/60207
DOI
https://doi.org/10.1088/1751-8121/aa7bda
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Journal of Physics A: Mathematical and Theoretical, 2017, vol. 50, p. 1-17
European research projects
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  • Publicacions de projectes de recerca del Plan Nacional [2217]
  • Articles publicats (Matemàtica) [266]

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