collaborators

8 papers

math.SG2026

Birkhoff conjecture and finite energy foliations in Hill's lunar problem

Lei Liu, Pedro A. S. Salomão

We prove Birkhoff's retrograde orbit conjecture in Hill's lunar problem by showing that the retrograde orbit bounds a disk-like global surface of section for every energy below the…

math.DS2026

Finite energy foliations and global dynamics in the restricted three-body problem

Lei Liu, Pedro A. S. Salomão

We establish a general criterion for the existence of finite energy foliations on contact three-manifolds with boundary, imposing strong global constraints on the associated Reeb f…

math.DS2026

Blaschke-type models for multimodal circle maps

Edson de Faria, Welington de Melo, Pedro A. S. Salomão +1

For each integer , we construct a finite-dimensional family of rational maps, given by Blaschke-type products, whose restriction to the unit circle consists of -multi…

math.SG2026

Cylindrical contact homology for weakly convex contact forms in dimension three

Ana Kelly de Oliveira, Pedro A. S. Salomão

A contact form on a closed contact three-manifold is called weakly convex if either it has no contractible Reeb orbit, or the first Chern class of vanishes on $Ï…

math.DS2026

Transverse foliations for two-degree-of-freedom mechanical systems

Naiara V. de Paulo, Seongchan Kim, Pedro A. S. Salomão +1

We investigate the dynamics of a two-degree-of-freedom mechanical system for energies slightly above a critical value. The critical set of the potential function is assumed to cont…

math.SG2026

ECH Constraints and Twist Dynamics in the Spatial Isosceles Three-Body Problem

Xijun Hu, Lei Liu, Yuwei Ou +2

We study dynamical constraints arising from Embedded Contact Homology (ECH) in the spatial isosceles three-body problem. For energies below the critical level, the dynamics on the…