1. Integrable extensions of the Adler map via Grassmann algebras

   • P. Adamopoulou
   • S. Konstantinou-Rizos
   • G. Papamikos

   Research Articles 21 June 2021 Pages: 553 - 559

2. Matrix Painlevé II equations

   • V. E. Adler
   • V. V. Sokolov

   Research Articles 21 June 2021 Pages: 560 - 571

3. Complicated behavior in cubic Hénon maps

   • S. Anastassiou

   Research Articles 21 June 2021 Pages: 572 - 578

4. Singularly perturbed partially dissipative systems of equations

   • V. F. Butuzov

   Research Articles 21 June 2021 Pages: 579 - 593

5. Tutte polynomials of vertex-weighted graphs and group cohomology

   • B. S. Bychkov
   • A. A. Kazakov
   • D. V. Talalaev

   Research Articles 21 June 2021 Pages: 594 - 603

   

6. The \(\text{m}\)KdV-type equations related to \(A_5^{(1)}\) and \(A_5^{(2)}\) Kac–Moody algebras

   • V. S. Gerdjikov
   • D. M. Mladenov
   • S. K. Varbev

   Research Articles 21 June 2021 Pages: 604 - 625

   

7. Determinants in quantum matrix algebras and integrable systems

   • D. I. Gurevich
   • P. A. Saponov

   Research Articles 21 June 2021 Pages: 626 - 639

8. Comparative dynamics of chains of coupled van der Pol equations and coupled systems of van der Pol equations

   • S. A. Kashenko

   Research Articles 21 June 2021 Pages: 640 - 654

   

9. Solution with an inner transition layer of a two-dimensional boundary value reaction–diffusion–advection problem with discontinuous reaction and advection terms

   • N. T. Levashova
   • N. N. Nefedov
   • O. A. Nikolaeva

   Research Articles 21 June 2021 Pages: 655 - 669

10. Group extensions, fiber bundles, and a parametric Yang–Baxter equation

    • M. M. Preobrazhenskaya
    • D. V. Talalaev

    Research Articles 21 June 2021 Pages: 670 - 677

11. Dynamics of a point in the axisymmetric gravitational potential of a massive fixed ring and center

    • A. V. Sakharov

    Research Articles 21 June 2021 Pages: 678 - 688