On Singularly Perturbed Linear Cocycles over Irrational Rotations Alexey V. Ivanov OriginalPaper 03 June 2021 Pages: 205 - 221
A Restricted Four-body Problem for the Figure-eight Choreography Ricardo LaraAbimael Bengochea OriginalPaper 03 June 2021 Pages: 222 - 235
Compactness and Index of Ordinary Central Configurations for the Curved \(N\)-Body Problem Shuqiang Zhu OriginalPaper 03 June 2021 Pages: 236 - 257
On the Isolation/Nonisolation of a Cosymmetric Equilibrium and Bifurcations in its Neighborhood Leonid G. KurakinAik V. Kurdoglyan OriginalPaper 03 June 2021 Pages: 258 - 270
Lax Pairs and Rational Solutions of Similarity Reductions for Kupershmidt and Sawada – Kotera Hierarchies Nikolay A. Kudryashov OriginalPaper 03 June 2021 Pages: 271 - 292
Generic Properties of Mañé’s Set of Exact Magnetic Lagrangians Alexandre Rocha OriginalPaper 03 June 2021 Pages: 293 - 304
Recruitment Effects on the Evolution of Epidemics in a Simple SIR Model Gilberto NakamuraBasil GrammaticosMathilde Badoual OriginalPaper 03 June 2021 Pages: 305 - 319