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International scientific workshop OTHA Fall 2025
on operator theory and harmonic analysis and their applications
(December 14–18, 2025, Sirius, Sochi)
International scientific workshop OTHA Fall 2025 will be held on 14-18 December 2025 in Sirius (Sochi).
The conference program includes a number of invited talks. Participation is free to everyone, however talks are only by invitation. Questions may be addressed to Email: otha.conference@gmail.com .
14 December - arrival; 15, 16 December - working days; 17 December - research discussions and excursion; 18 December - departure
As a satellite session, one more extra day of the workshop will be held at the Southern Federal University in the administrative main building of the Southern Federal University.
OTHA workshops are part of the OTHA conference/workshops/seminars/editorial activities https://otha.sfedu.ru/ , http://msrn.sfedu.ru/
 Financial support
Supported by the Regional Mathematical Center, project of the Ministry of Science and Higher Education RF, agreement № 075-02-2025-1720 dated 28.02.2025.
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| International scientific workshop OTHA Fall 2025
on operator theory and harmonic analysis and their applications, Sochi, December 14–18, 2025 |
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December 15, 2025 (Mon) |
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| 1. |
Spectral problems generated by systems of ordinary differential equations
A. A. Shkalikov
December 15, 2025 10:00–10:30, Sochi, Sirius
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| 2. |
Implementation of the inverse scattering transform method for the nonlinear Schrödinger equation
V. V. Kravchenko
December 15, 2025 10:35–11:05, Sochi, Sirius
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| 3. |
Numerical method for diffusion-wave equation with time fractional psi-Caputo derivative
Ch. Li
December 15, 2025 11:10–11:40, Sochi, Sirius
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| 4. |
Farkas Lemma for Linear and Multilinear operators
A. G. Kusraev
December 15, 2025 12:10–12:40, Sochi, Sirius
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| 5. |
Toeplitz operators, weighted spaces, and hyperbolic geometry
A. N. Karapetyants
December 15, 2025 12:45–13:15, Sochi, Sirius
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| 6. |
Maslov's canonical operator: new formulas and effective asymptotics
V. E. Nazaikinskii
December 15, 2025 14:25–14:55, Sochi, Sirius
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| 7. |
On the convergence conditions of the weak greedy algorithm
A. P. Solodov
December 15, 2025 15:00–15:30, Sochi, Sirius
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| 8. |
Violation of Bell’s inequalities in Jordan triples and Jordan algebras
E. A. Turilova
December 15, 2025 15:35–16:05, Sochi, Sirius
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| 9. |
Mixed-Fourier-norm spaces and holomorphic functions
Zh. G. Avetisyan
December 15, 2025 16:10–16:40, Sochi, Sirius
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December 16, 2025 (Tue) |
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Two-sided estimates of Lebesgue constants for spaces of functions
E. I. Berezhnoi
December 16, 2025 10:00–10:30, Sochi, Sirius
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| 11. |
Spectral problems in domains with boundary without boundary conditions, billiards with semi-rigid walls and asymptotics of long coastal waves
S. Yu. Dobrokhotov
December 16, 2025 10:35–11:05, Sochi, Sirius
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| 12. |
Cauchy problem for nonstationary differential-difference equations: series expansions of solutions
A. B. Muravnik
December 16, 2025 11:10–11:40, Sochi, Sirius
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Fractional powers of operators as traces of operator-valued functions of real variable
A. I. Nazarov
December 16, 2025 12:10–12:40, Sochi, Sirius
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| 14. |
Chebyshev wavelets, Vieta-Lucas wavelets and connection coefficients
E. Guariglia
December 16, 2025 12:45–13:15, Sochi, Sirius
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| 15. |
Harmonic mixed norm spaces: Carleson measures and Toeplitz operators
M. Arsenović
December 16, 2025 14:25–14:55, Sochi, Sirius
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| 16. |
Stability and optimality criteria for a mathematical model of infectious diseases
A. Debbouche
December 16, 2025 15:00–15:30, Sochi, Sirius
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Hahn-Banach theorem: old and new
Z. A. Kusraeva
December 16, 2025 15:35–16:05, Sochi, Sirius
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