The parameterization method for invariant manifolds

A Haro, M Canadell, JL Figueras, A Luque… - Applied mathematical …, 2016 - Springer
Poincaré's program for the global analysis of a dynamical system starts by considering
simple solutions, such as equilibria and periodic orbits, together with their corresponding …

Rigorous computer-assisted application of KAM theory: a modern approach

JL Figueras, A Haro, A Luque - Foundations of Computational …, 2017 - Springer
In this paper, we present and illustrate a general methodology to apply KAM theory in
particular problems, based on an a posteriori approach. We focus on the existence of real …

Rapid and accurate methods for computing whiskered tori and their manifolds in periodically perturbed planar circular restricted 3-body problems

B Kumar, RL Anderson, R de la Llave - Celestial Mechanics and …, 2022 - Springer
When the planar circular restricted 3-body problem (RTBP) is periodically perturbed, families
of unstable periodic orbits break up into whiskered tori, with most tori persisting into the …

[HTML][HTML] A modified parameterization method for invariant Lagrangian tori for partially integrable Hamiltonian systems

JL Figueras, A Haro - Physica D: Nonlinear Phenomena, 2024 - Elsevier
In this paper we present an a-posteriori KAM theorem for the existence of an (n− d)-
parameter family of d-dimensional isotropic invariant tori with Diophantine frequency vector …

Computation of whiskered invariant tori and their associated manifolds: new fast algorithms

G Huguet, R de La Llave, Y Sire - arXiv preprint arXiv:1004.5231, 2010 - arxiv.org
In this paper we present efficient algorithms for the computation of several invariant objects
for Hamiltonian dynamics. More precisely, we consider KAM tori (ie diffeomorphic copies of …

Geography of resonances and Arnold diffusion in a priori unstable Hamiltonian systems

A Delshams, G Huguet - Nonlinearity, 2009 - iopscience.iop.org
In this paper we consider the case of a general perturbation, for r large enough, of an a priori
unstable Hamiltonian system of 2+ 1/2 degrees of freedom, and we provide explicit …

[HTML][HTML] Fourier–Taylor parameterization of unstable manifolds for parabolic partial differential equations: formalism, implementation and rigorous validation

C Reinhardt, JDM James - Indagationes Mathematicae, 2019 - Elsevier
We study polynomial expansions of local unstable manifolds attached to equilibrium
solutions of parabolic partial differential equations. Due to the smoothing properties of …

A numerically accessible criterion for the breakdown of quasi-periodic solutions and its rigorous justification

R Calleja, R De la Llave - Nonlinearity, 2010 - iopscience.iop.org
We formulate and justify rigorously a numerically efficient criterion for the computation of the
analyticity breakdown of quasi-periodic solutions in symplectic maps (any dimension) and …

Semianalytical computation of heteroclinic connections between center manifolds with the parameterization method

M Barcelona, A Haro, JM Mondelo - SIAM Journal on Applied Dynamical …, 2024 - SIAM
This paper presents a methodology for the computation of whole sets of heteroclinic
connections between isoenergetic slices of center manifolds of center center saddle fixed …

Computation of quasiperiodic normally hyperbolic invariant tori: rigorous results

M Canadell, À Haro - Journal of Nonlinear Science, 2017 - Springer
The development of efficient methods for detecting quasiperiodic oscillations and computing
the corresponding invariant tori is a subject of great importance in dynamical systems and …