Periodic points of a Landen transformation

We prove the existence of 3-periodic orbits in a dynamical system associated to a Landen transformation previously studied by Boros, Chamberland and Moll, disproving a conjecture on the dynamics of this planar map introduced by the latter author. To this end we present a systematic methodology to de...

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Bibliographic Details
Authors: Gasull, Armengol, Llorens, Mireia, Mañosa Fernández, Víctor|||0000-0002-5082-3334
Format: article
Publication Date:2018
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/117414
Online Access:https://hdl.handle.net/2117/117414
https://dx.doi.org/10.1016/j.cnsns.2018.04.020
Access Level:Open access
Keyword:Differentiable dynamical systems
Periodic points
Landen transformations
Poincaré-Miranda theorem
Sistemes dinàmics diferenciables
Classificació AMS::37 Dynamical systems and ergodic theory::37C Smooth dynamical systems: general theory
Classificació AMS::33 Special functions::33E Other special functions
Àrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals::Sistemes dinàmics
Description
Summary:We prove the existence of 3-periodic orbits in a dynamical system associated to a Landen transformation previously studied by Boros, Chamberland and Moll, disproving a conjecture on the dynamics of this planar map introduced by the latter author. To this end we present a systematic methodology to determine and locate analytically isolated periodic points of algebraic maps. This approach can be useful to study other discrete dynamical systems with algebraic nature. Complementary results on the dynamics of the map associated with the Landen transformation are also presented.