
Complex Approximations, Orthogonal Polynomials and Applications Workshop, Sochi, June 7–11, 2021 


June 7, 2021 (Mon) 

1. 
An almost periodic model for general reflectionless spectral data R. V. Bessonov June 7, 2021 09:30–10:10, Sochi





2. 
On the uniform convergence of Green's functions S. I. Kalmykov June 7, 2021 10:15–10:40, Sochi





3. 
Multiplicity of zeros of polynomials V. Totik June 7, 2021 11:15–11:40, Sochi





4. 
Pointwise Remez inequality P. M. Yuditskii June 7, 2021 11:45–12:25, Sochi





5. 
Convergence rate for weighted polynomial approximation on the real line A. A. Kononova June 7, 2021 12:30–12:55, Sochi





6. 
Solving the signed equilibrium problem on several real intervals B. Beckermann, A. C. Matos June 7, 2021 14:30–14:55, Sochi





7. 
Tensors, polynomials and rank increment conjecture E. E. Tyrtyshnikov June 7, 2021 15:00–15:25, Sochi





8. 
Stability polynomials for explicit Runge–Kutta methods: optimal and damped A. B. Bogatyrev June 7, 2021 15:30–15:55, Sochi





9. 
On $L_{\mathbb R}^2$best rational approximants to Markov functions on several intervals M. Yattselev June 7, 2021 16:30–16:55, Sochi





10. 
Subharmonic functions in spectral theory and multidimensional scattering S. A. Denisov June 7, 2021 17:00–17:25, Sochi





11. 
Aspects of nonlinear differential equations G. V. Filipuk June 7, 2021 17:30–17:55, Sochi






June 8, 2021 (Tue) 

12. 
Analytic continuation of the multiple hypergeometric functions S. I. Bezrodnykh June 8, 2021 09:30–10:10, Sochi





13. 
Properties of level curves of a function generated by an Abel integral on threesheeted torus S. R. Nasyrov June 8, 2021 10:15–10:40, Sochi





14. 
Matrixvalued orthogonal polynomials related to hexagon tilings A. Kuijlaars June 8, 2021 11:00–11:40, Sochi





15. 
Global phase portrait and large degree asymptotics for the kissing polynomials A. Deaño June 8, 2021 11:45–12:25, Sochi





16. 
Approximations and almost periodicity W. M. Lawton June 8, 2021 12:30–12:55, Sochi





17. 
From OPRL to OPUC. A matrix approach beyond the Szegő transformations F. J. Marcellán June 8, 2021 14:30–14:55, Sochi





18. 
Polynomial solutions of linear differential operators and Bochner's theorem M. Yu. Tyaglov June 8, 2021 15:00–15:25, Sochi





19. 
Riesz energy problems in unbounded sets of $\mathbb{R}^{d}$ F. Wielonsky June 8, 2021 15:30–15:55, Sochi





20. 
Jacksontype estimates on the weighted unit ball M. A. Piñar June 8, 2021 16:30–16:55, Sochi





21. 
Chebyshev polynomials in the complex plane J. Christiansen June 8, 2021 17:00–17:25, Sochi





22. 
On the best uniform polynomial approximation to the checkmark function P. Dragnev June 8, 2021 17:30–17:55, Sochi






June 9, 2021 (Wed) 

23. 
Realvalued semiclassical approximation for the asymptotics with complexvalued phases and its application to multiple orthogonal Hermite polynomials A. V. Tsvetkova June 9, 2021 09:30–10:10, Sochi





24. 
Differential equation for the limit of the nearest neighbour recursion coefficients for MORPL R. V. Kozhan June 9, 2021 10:15–10:40, Sochi





25. 
Hermite–Padé approximation and the number $\pi$ W. Van Assche June 9, 2021 11:00–11:40, Sochi





26. 
On some results in multiple orthogonal polynomials and its applications V. A. Kalyagin June 9, 2021 11:45–12:10, Sochi






June 10, 2021 (Thu) 

27. 
From Ginzburg–Landau vortices to Seiberg–Witten equations A. G. Sergeev June 10, 2021 09:30–10:10, Sochi





28. 
Multivariate mixed orthogonal functions satisfying three term relations T. E. Pérez June 10, 2021 10:15–10:40, Sochi





29. 
On Markov's theorem for multilevel Hermite–Padé approximants of a Nikishin system G. López Lagomasino June 10, 2021 11:00–11:25, Sochi





30. 
Ratio asymptotic of generalized multilevel Hermite–Padé polynomials L. González Ricardo June 10, 2021 11:30–11:55, Sochi





31. 
On algebraic properties of the mixed type approximants V. G. Lysov June 10, 2021 12:00–12:25, Sochi





32. 
On the generalisation of the scalar approach to the weak asymptotics of Hermite–Padé polynomials: some recent achievements E. Lopatin June 10, 2021 12:30–12:55, Sochi





33. 
Ratio asymptotics for symmetric multiple orthogonal polynomials A. Loureiro June 10, 2021 14:30–14:55, Sochi





34. 
Discrete multiple orthogonal polynomials on shifted lattices A. V. Dyachenko June 10, 2021 15:00–15:25, Sochi





35. 
On the asymptotics of orthogonal measure for special polynomials in the problem of radiation scattering M. A. Lapik June 10, 2021 15:30–15:55, Sochi






Section I


36. 
Birationality of the automorphisms of the model surface V. K. Beloshapka June 10, 2021 16:30–16:55, Section I, Sochi





37. 
On functions of finite analytical complexity M. A. Stepanova June 10, 2021 17:00–17:25, Section I, Sochi






Section II


38. 
Dynamics of complex singularities in fluid dynamics and analytical continuation by rational approximants P. M. Lushnikov June 10, 2021 16:30–16:55, Section II, Sochi





39. 
Stokes waves of extreme form P. I. Plotnikov June 10, 2021 17:00–17:25, Section II, Sochi






June 11, 2021 (Fri) 

40. 
Poncelet–Darboux, Kippenhahn, and Szegő: projective geometry, matrices and orthogonal polynomials A. MartínezFinkelshtein June 11, 2021 09:30–10:10, Sochi





41. 
Bernstein type inequalities and potential theory B. Nagy June 11, 2021 10:15–10:40, Sochi





42. 
Uniformly convergent Fourier series with universal power parts on closed subsets of measure zero S. V. Khrushchev June 11, 2021 11:00–11:25, Sochi





43. 
Optimal bounds for the attractor dimension for 3D damped regularized Euler equations A. A. Ilyin June 11, 2021 11:30–11:55, Sochi





44. 
Chui’s conjecture in Bergman spaces K. Yu. Fedorovskiy June 11, 2021 12:00–12:25, Sochi





45. 
Bergman, Szegő, Faber and Christoffel: boundary behavior N. Stylianopoulos June 11, 2021 12:30–13:10, Sochi




