Complex Approximations, Orthogonal Polynomials and Applications (CAOPA)

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Complex Approximations, Orthogonal Polynomials and Applications (CAOPA)
online via Zoom, Moscow

Topics:

Rational approximations
Orthogonal polynomials
Spectral theory of difference operators
Random matrices
Special functions

Please register at caopa2020@gmail.com to get the Zoom link.

RSS: Forthcoming seminars

Seminar organizer
Lysov Vladimir Genrikhovich
Dyachenko Aleksandr Viktorovich
Tyaglov Mikhail Yur'evich

Organizations
Keldysh Institute of Applied Mathematics of Russian Academy of Sciences, Moscow

Complex Approximations, Orthogonal Polynomials and Applications (CAOPA), Moscow

Spectral properties of tridiagonal matrices with two-periodic main diagonal via orthogonal polynomials M. Yu. Tyaglov October 17, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 BST=19:00 CEST=20:00 Msk)
Chebyshev ansatz for multiband approximation: an overview A. B. Bogatyrev May 30, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 BST=19:00 CEST=20:00 Msk)
Schrödinger operator with complex potential – absolutely continuous vs singular spectrum R. V. Romanov April 25, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 BST=19:00 CEST=20:00 Msk)
Spectral properties of some tridiagonal matrices A. V. Dyachenko April 11, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 BST=19:00 CEST=20:00 Msk)
Periods of Negative-regular Continued Fractions. Rational numbers S. V. Khrushchev March 28, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 BST=19:00 CEST=20:00 Msk)
Estimates of Lebesgue constants for Lagrange interpolation processes by rational functions under mild restrictions to their fixed poles A. L. Lukashov March 14, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 CET=20:00 Msk)
Recurrence relations for multilevel interpolations V. G. Lysov February 28, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Computation of the logarithmic capacity Olivier Sete February 21, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Removable sets for intrinsic metric S. I. Kalmykov February 7, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Toda lattice, special functions and their matrix analogues E. Koelink January 24, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Supersymmetric approach to the deformed Ginibre ensemble T. Shcherbina January 17, 2022 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Asymptotics of r-fold symmetric multiple orthogonal polynomials A. Loureiro December 13, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Simultaneous Gaussian quadrature for Angelesco systems W. Van Assche December 6, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
A direct proof of Stahl's theorem for a generic class of algebraic functions S. P. Suetin November 29, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Time-dependent moments from the heat equation Philipp J. di Dio November 22, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Positive definite periodic functions and polynomials orthogonal on the unit circle with dense point spectrum A. S. Zhedanov November 15, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=12:00 EST=18:00 CET=20:00 Msk)
Symmetric orthogonal polynomials P. A. Clarkson November 1, 2021 20:00 Moscow, online via Zoom at 17:00 GMT (=13:00 EDT=18:00 CET=20:00 Msk)
Approximation by simplest fractions and Chui's conjecture in weighted Bergman spaces K. Yu. Fedorovskiy October 18, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=17:00 BST=18:00 CEST=19:00 Msk)
Multiple orthogonal polynomials and branched continued fractions Helder Lima October 4, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=17:00 BST=18:00 CEST=19:00 Msk)
A semiclassical WKB problem for the non-self-adjoint Dirac operator with a decaying potential N. Hatzizisis September 20, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=17:00 BST=18:00 CEST=19:00 Msk)
Strong asymptotic of Cauchy biorthogonal polynomials and orthogonal polynomials with varying measure G. López Lagomasino April 26, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=17:00 BST=18:00 CEST=19:00 Msk)
Entropy function of a measure and how to use it for orthogonal polynomials R. V. Bessonov April 12, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=17:00 BST=18:00 CEST=19:00 Msk)
Optimal reconstruction of functions from their truncated power series at a point Ovidiu Costin March 1, 2021 19:00 Moscow, online via Zoom at 16:00 GMT (=19:00 Msk)
A proof of a conjecture of Elbert and Laforgia on the zeros of cylinder functions G. Nemes November 16, 2020 19:00 Moscow, online via Zoom
Kissing polynomials: algebraic and asymptotic properties A. Deaño October 26, 2020 19:00 Moscow, online via Zoom
Degenerations of the elliptic analogue of Euler–Gauss hypergeometric function V. P. Spiridonov October 12, 2020 18:00 Moscow, online via Zoom
On the Bernstein- and Markov-type inequalities S. I. Kalmykov September 28, 2020 18:00 Moscow, online via Zoom
Elliptic hypergeometric functions (a survey) V. P. Spiridonov September 21, 2020 15:00 Moscow, online via Zoom
Complete classification of rational solutions of PIV and its higher order generalizations D. Gomez-Ullate September 14, 2020 15:00 Moscow, online via Zoom
Asymptotics of greedy energy sequences on the unit circle and the sphere A. López-García September 7, 2020 15:00 Moscow, online via Zoom
Spectral theory of Jacobi matrices on trees whose coefficients are generated by multiple orthogonality M. Yattselev August 31, 2020 15:00 Moscow, online via Zoom
On the generalization of the scalar approach to the problem of a limit distribution of zeros of Hermite-Pade polynomials for a Nikishin system E. A. Lopatin August 24, 2020 15:00 Moscow, online via Zoom
The local universality of Muttalib-Borodin ensembles L. Molag August 17, 2020 15:00 Moscow, online via Zoom
Convergent non complete interpolatory quadrature rules U. Fidalgo August 10, 2020 15:00 Moscow, online via Zoom
Ratios of the Gauss hypergeometric functions with parameters shifted by integers as Stieltjes and Nevanlinna N-kappa functions A. V. Dyachenko, D. B. Karp August 3, 2020 15:00 Moscow, online via Zoom
Spectral curves for multiple orthogonal polynomials G. Silva July 27, 2020 15:00 Moscow, online via Zoom
Barnes-Ismagilov integrals and hypergeometric functions of the complex field Yu. A. Neretin July 20, 2020 15:00 Moscow, online via Zoom
On some properties of the entries of a refinement equation and of their generalizations M. S. Derevyagin July 13, 2020 18:00 Moscow, online via Zoom
Polynomial eigenfunctions of linear ordinary differential operators A. V. Dyachenko, M. Yu. Tyaglov July 6, 2020 18:00 Moscow, online via Zoom
Zero distribution of orthogonal polynomials on a $q$-lattice W. Van Assche June 29, 2020 18:00 Moscow, online via Zoom
A vector equilibrium problem for symmetrically located points on the sphere A. Kuijlaars June 22, 2020 18:00 Moscow, online via Zoom
Degenerate Sklyanin algebras and orthogonal polynomials L. Vinet June 15, 2020 18:00 Moscow, online via Zoom
Construction of open up mappings with rational functions and related questions B. Nagy June 8, 2020 18:00 Moscow, online via Zoom
Levy processes and special functions A. E. Kuznetsov June 1, 2020 18:00 Moscow, online via Zoom
Outside the Szegö condition: some proofs and disproofs A. A. Kononova May 25, 2020 18:00 Moscow, online via Zoom
Orthogonal polynomials with respect to varying exponential weights Ahmad Barhoumi May 18, 2020 18:00 Moscow, online via Zoom
An orthogonal polynomials approach to Poncelet’s theorem, numerical range, Blaschke products, and beyond… A. Martínez-Finkelshtein May 11, 2020 18:00 Moscow, online via Zoom
Band and time limiting and Heun operators A. S. Zhedanov May 4, 2020 19:00 Moscow, online via Zoom
Heun difference operators and bispectrality A. S. Zhedanov April 27, 2020 19:00 Moscow, online via Zoom
On a generalisations of the Sylvester-Kac matrix and polynomial solutions of linear differential operators. Part II M. Yu. Tyaglov April 20, 2020 19:00 Moscow, online via Zoom
On a generalisations of the Sylvester-Kac matrix and polynomial solutions of linear differential operators M. Yu. Tyaglov April 13, 2020 19:00 Moscow, online via Zoom
Mixed type Hermite–Padé approximants for Nikishin system: normality and properties of poles V. G. Lysov April 6, 2020 19:00 Moscow, online via Zoom
Total positivity in analysis and combinatorics A. V. Dyachenko March 30, 2020 19:00 Moscow, online via Zoom