1. Discrete Schrödinger Operator on a Tree, Angelesco Potentials, and Their Perturbations

   • A. I. Aptekarev
   • S. A. Denisov
   • M. L. Yattselev

   Research Articles 02 February 2021 Pages: 1 - 9

2. Filtration under a Stepped Dam and Riemann Theta Functions

   • A. B. Bogatyrev
   • O. A. Grigor’ev

   Research Articles 02 February 2021 Pages: 10 - 21

   

3. Hitchin Systems on Hyperelliptic Curves

   • P. I. Borisova
   • O. K. Sheinman

   Research Articles 02 February 2021 Pages: 22 - 35

   

4. Capacities on a Compact Riemann Surface

   • E. M. Chirka

   Research Articles 02 February 2021 Pages: 36 - 77

5. Curvature Properties of Twistor Spaces

   • Johann Davidov
   • Oleg Mushkarov

   Research Articles 02 February 2021 Pages: 78 - 97

6. Global Meromorphy of Solutions of the Painlevé Equations and Their Hierarchies

   • A. V. Domrin
   • B. I. Suleimanov
   • M. A. Shumkin

   Research Articles 02 February 2021 Pages: 98 - 113

7. Leaky Quantum Structures

   • Pavel Exner

   Research Articles 02 February 2021 Pages: 114 - 128

   

8. Poisson–Lie Algebras and Singular Symplectic Forms Associated to Corank 1 Type Singularities

   • T. Fukuda
   • S. Janeczko

   Research Articles 02 February 2021 Pages: 129 - 151

9. Weakly Lacunary Orthogonal Systems and Properties of the Maximal Partial Sum Operator for Subsystems

   • B. S. Kashin
   • I. V. Limonova

   Research Articles 02 February 2021 Pages: 152 - 170

10. Holomorphic Maps of Levi-Degenerate Tube Hypersurfaces in \(\mathbb C^3\)

    • N. G. Kruzhilin

    Research Articles 02 February 2021 Pages: 171 - 179

11. On the Problem of Describing Holomorphically Homogeneous Real Hypersurfaces of Four-Dimensional Complex Spaces

    • A. V. Loboda

    Research Articles 02 February 2021 Pages: 180 - 198

12. Mixed Type Hermite–Padé Approximants for a Nikishin System

    • V. G. Lysov

    Research Articles 02 February 2021 Pages: 199 - 213

13. Partially Integrable Almost Complex Structures

    • Oleg Mushkarov

    Research Articles 02 February 2021 Pages: 214 - 224

14. Trace Class Toeplitz Operators with Singular Symbols

    • Grigori V. Rozenblum
    • Nikolai L. Vasilevski

    Research Articles 02 February 2021 Pages: 225 - 232

15. Quantisation of a Family of Phase Spaces

    • Siye Wu

    Research Articles 02 February 2021 Pages: 233 - 244

16. Recent Results in Several Complex Variables and Complex Geometry

    • Xiangyu Zhou

    Research Articles 02 February 2021 Pages: 245 - 260