URL:  https://www.aimsciences.org/journal/1941-4889/2020/12/3

Preface to the special issue dedicated to James Montaldi 
Luis C. García-Naranjo, Manuel de León and Juan Pablo Ortega doi: 10.3934/jgm.2020028

Relative equilibria of the 3-body problem in R4 
Alain Albouy and Holger R. Dullin doi: 10.3934/jgm.2020012

The method of averaging for Poisson connections on foliations and its applications Pages 
Misael Avendaño-Camacho, Isaac Hasse-Armengol, Eduardo Velasco-Barreras and Yury Vorobiev doi: 10.3934/jgm.2020015

The group of symplectic birational maps of the plane and the dynamics of a family of 4D maps 
Ines Cruz, Helena Mena-Matos and Esmeralda Sousa-Dias doi: 10.3934/jgm.2020010

Symmetry reduction of the 3-body problem in R4 
Holger R. Dullin and Jürgen Scheurle doi: 10.3934/jgm.2020011

Control of locomotion systems and dynamics in relative periodic orbits 
Francesco Fassò, Simone Passarella and Marta Zoppello doi: 10.3934/jgm.2020022

Higher order normal modes  
Giuseppe Gaeta and Sebastian Walcher doi: 10.3934/jgm.2020026

Some remarks about the centre of mass of two particles in spaces of constant curvature 
Luis C. García-Naranjo doi: 10.3934/jgm.2020020

Characterization of toric systems via transport costs Pages: 447-454
Sonja Hohloch doi: 10.3934/jgm.2020027

Angular momentum coupling, Dirac oscillators, and quantum band rearrangements in the presence of momentum reversal symmetries 
Toshihiro Iwai, Dmitrií A. Sadovskií and Boris I. Zhilinskií doi: 10.3934/jgm.2020021

Getting into the vortex: On the contributions of james montaldi 
Jair Koiller doi: 10.3934/jgm.2020018

Continuous singularities in hamiltonian relative equilibria with abelian momentum isotropy 
Miguel Rodríguez-Olmos doi: 10.3934/jgm.2020019

A summary on symmetries and conserved quantities of autonomous Hamiltonian systems 
Narciso Román-Roy doi: 10.3934/jgm.2020009