1. Integrable Systems on a Sphere, an Ellipsoid and a Hyperboloid

   • Andrey V. Tsiganov

   OriginalPaper 31 July 2023 Pages: 805 - 821

   

2. Unifying the Hyperbolic and Spherical \(2\)-Body Problem with Biquaternions

   • Philip Arathoon

   OriginalPaper 07 December 2023 Pages: 822 - 834

   

3. Non-Integrable Sub-Riemannian Geodesic Flow on \(J^{2}(\mathbb{R}^{2},\mathbb{R})\)

   • Alejandro Bravo-Doddoli

   OriginalPaper 07 December 2023 Pages: 835 - 840

4. Non-Quasi-Periodic Normal Form Theory

   • Gabriella Pinzari

   OriginalPaper 07 December 2023 Pages: 841 - 864

5. Circular Fleitas Scheme for Gradient-Like Flows on the Surface

   • Vladislav D. Galkin
   • Elena V. Nozdrinova
   • Olga V. Pochinka

   OriginalPaper 07 December 2023 Pages: 865 - 877

   

6. On the Method of Introduction of Local Variables in a Neighborhood of Periodic Solution of a Hamiltonian System with Two Degrees of Freedom

   • Boris S. Bardin

   OriginalPaper 07 December 2023 Pages: 878 - 887

7. Stabilization of Steady Rotations of a Spherical Robot on a Vibrating Base Using Feedback

   • Alexander A. Kilin
   • Tatiana B. Ivanova
   • Elena N. Pivovarova

   OriginalPaper Open access 07 December 2023 Pages: 888 - 905