activity
20042026
most citedAround the stability of KAM-tori

42 citations · 167 across the 42 of their papers we have counts for

collaborators

55 papers

math.DS2026

On the density of Lyapunov unstable elliptic equilibria

Bassam Fayad, Jaime Paradela, Maria Saprykina +1

We prove that any real-analytic Hamiltonian in five or more degrees-of-freedom, with a locally integrable non-degenerate elliptic equilibrium with indefinite quadratic part, can be…

math.DS2026

Kolmogorov invariant torus theorem for weakly interacting particles I: Full dimensional tori

Dmitry Dolgopyat, Bassam Fayad, Jaime Paradela

We develop an abstract KAM theorem for systems of infinitely many interacting particles with decaying masses and all-to-all interactions. Using this framework, we construct full-di…

math.DS2024

Inducing countable Lebesgue spectrum

Fatna Abdedou, Bassam Fayad, Jean-Paul Thouvenot

We show that every ergodic dynamical system induces a system with pure Lebesgue spectrum of infinite multiplicity.

math.PR2023★ 1 cited

Energy growth for systems of coupled oscillators with partial damping

Dmitry Dolgopyat, Bassam Fayad, Leonid Koralov +1

We consider two interacting particles on the circle. The particles are subject to stochastic forcing, which is modeled by white noise. In addition, one of the particles is subject…

math.DS2023

A non-mixing Arnold flow on a surface

Bassam Fayad, Adam Kanigowski, Rigoberto Zelada

We construct a smooth area preserving flow on a genus 2 surface with exactly one open uniquely ergodic component, that is asymmetrically bounded by separatrices of non-degenerate s…

math.DS2023

Reducibility without KAM

Fernando Argentieri, Bassam Fayad

We prove rotations-reducibility for close to constant quasi-periodic cocycles in one frequency in the finite regularity and smooth cases, and derive some applica…