02/07/2018 16:00, Room 4109, **Louis Kauffman** (NSU, University of Illinois at Chicago), *Affine Index polynomial and virtual knot cobordism* __Slides__ __photo 1__ __photo 2__ __photo 3__

09/07/2018 16:00, Room. 4109, **Louis Kauffman** (NSU, University of Illinois at Chicago), *Affine Index polynomial and virtual knot cobordism (continuation)* __photo 1__ __photo 2__

03/09/2018 10:50, Room 417, **Sergey Agapov** (NSU), *On integrability of magnetic geodesic flows on a 2-torus on all energy levels*

10/09/2018 10:50, Room 417, **Mikhail Neshchadim** (Sobolev Institute of Mathematics), *Braids, knots and groups of knots*

24/09/2018 10:50, Room 417, **Nikolay Russkikh** (NSU), *Deep neural networks*

01/10/2018 10:50, Room 417, **Nikolay Russkikh** (NSU), *Deep neural networks II*

08/10/2018 10:50, Room 417, **Louis Kauffman** (NSU, University of Illinois at Chicago), *Khovanov Homology for Virtual Knots*

15/10/2018 10:50, Room 417, **Louis Kauffman** (NSU, University of Illinois at Chicago), *Khovanov Homology for Virtual Knots II*

22/10/2018 10:50, Room 417, **Konstantin Gotin** (NSU), *An analogue of Markov's theorem for doodles on a two-sphere*

29/10/2018 10:50, Room 417, **Konstantin Gotin** (NSU), *An analogue of Markov's theorem for doodles on a two-sphere II*

26/11/2018 10:50, Room 417, **Rada Bogdanova, Vladimir Kyrov** (Gorno-Altaysk State University), *The groups of motions of three-dimensional maximal local mobility geometries*

10/12/2018 10:50, Room 417, **Kirill Brodt** (NSU), *Correction of misprints in the full name with the help of artificial neural networks*

17/12/2018 10:50, Room 417, **Igor Kulikov** (Institute of Computational Mathematics and Mathematical Geophysics), *The hydrodynamical simulation of SNIa*

24/12/2018 10:50, Room 417, **Alexey Gavrilov** (Institute of Computational Mathematics and Mathematical Geophysics), *Stationary Euler flow with a compact support*

04/02/2019 10:50, Room 417, **Zakhar Makridin** (Lavrentyev Institute of Hydrodynamics, NSU), *Periodic oscillations and waves in nonlinear weakly coupled dispersive systems*

11/02/2019 10:50, Room 417, **Andrei Vesnin** (Sobolev Institute of Mathematics, NSU), *The density of a set of zeros of polynomials which are invariants of spatial graphs*

18/02/2019 10:50, Room 417, **Valerii Snytnikov** (Boreskov Institute of Catalysis), *Astrophysics and astrochemistry of exoplanets - supercomputer modeling and its problems*

04/03/2019 10:50, Room 417, **Hans-Bert Rademacher** (Leipzig University, Germany), *Critical values of homology classes of loops and positive curvature*

11/03/2019 10:50, Room 417, **Aleksandr Dolgov** (Institute for Theoretical and Experimental Physics: National Research Center "Kurchatov Institute"), *Massive black holes in the universe and other mysterious objects. The mechanism of their possible origin*

25/03/2019 10:50, Room 417, **Michail Dulin** (Institute of Thermophysics), *On discrete models of physical spaces*

08/04/2019 10:50, Room 417, **Aleksandr Senninger** (NSU), *Study of black hole phenomena via the Schwarzschild singularity in Kruskal coordinates*

29/04/2019 10:50, Room 417, **Vladimir Sharafutdinov** (Sobolev Institute of Mathematics), *The ray transform with polynomial weight on Euclidean space*

09/09/2019 10:50, Room 417, **Sergei Agapov** (Sobolev Institute of Mathematics, NSU), *Rational first integrals of Hamiltonian systems on the 2-torus*

16/09/2019 10:50, Room 115, **Ivan Dynnikov** (Steklov Mathematical Institute), *Non-triangulated manifolds and homological cobordisms*

16/09/2019 16:20, Room 4109, **Ivan Dynnikov** (Steklov Mathematical Institute), *Distinguishing Legendrian and transverse knots*

23/09/2019 10:50, Room 115, **Louis Kauffman** (NSU, University of Illinois at Chicago), *Virtual Knots and Links and Perfect Matchings of Trivalent Graphs*

30/09/2019 10:50, Room 115, **Boris Sibiryakov** (Trofimuk Institute of Petroleum Geology and Geophysics), * Elements of integral geometry and dynamics of porous and fractured environments *

07/10/2019 10:50, Room 115, **Vladimir Potapov** (Sobolev Institute of Mathematics), * Entropy and information *

14/10/2019 10:50, Room 115, **Vladislav Todikov** (NSU), *Constructions of compact G _{2}-manifolds I*

21/10/2019 10:50, Room 115, **Vladislav Todikov** (NSU), *Constructions of compact G _{2}-manifolds II*

28/10/2019 10:50, Room 115, **Vladislav Todikov** (NSU), *Constructions of compact G _{2}-manifolds III*

11/11/2019 10:50, Room 115, **Sergey Agapov** (Sobolev Institute of Mathematics, NSU), *Abnormal geodesics in the sub-Riemannian geometry I*

18/11/2019 10:50, Room 115, **Sergey Agapov** (Sobolev Institute of Mathematics, NSU), *Abnormal geodesics in the sub-Riemannian geometry II*

25/11/2019 10:50, Room 417, **Sergey Godunov, Dmitrii Klyuchinskii** (Sobolev Institute of Mathematics, NSU), *Discussion on the concept of a generalized solution in gas dynamics I*

02/12/2019 10:50, Room 417, **Sergey Godunov, Dmitrii Klyuchinskii** (Sobolev Institute of Mathematics, NSU), *Discussion on the concept of a generalized solution in gas dynamics II*

09/12/2019 10:50, Room 417, **Sergey Agapov** (Sobolev Institute of Mathematics, NSU), *Abnormal geodesics in the sub-Riemannian geometry III*

16/12/2019 10:50, Room 417, **Anatoly Dvurechenskii** (Rzhanov Institute of Semiconductor Physics), *Logic elements for quantum computing based on qubits in a quantum dot system*

23/12/2019 10:50, Room 417, **Viktor Zhelyabin, Anton Zakharov** (Sobolev Institute of Mathematics, NSU), *Superalgebras of Jordan brackets defined by an n-sphere*

24/01/2020 10:50, Room 417, **Zakhar Makridin** (Lavrentyev Institute of Hydrodynamics, NSU), *Permeability of porous media and topological characteristics I*

31/01/2020 10:50, Room 417, **Zakhar Makridin** (Lavrentyev Institute of Hydrodynamics, NSU), *Permeability of porous media and topological characteristics II*

03/02/2020 10:50, Room 417, **Sergey Tsarev** (Siberian Federal University), *Discrete orthogonal polynomials: anomalies of time series and boundary effects of polynomial filters*

17/02/2020 10:50, Room 417, **Pavel Plotnikov** (Lavrentyev Institute of Hydrodynamics, NSU), *The Kuwert-Li theorem and Heleinâ€™s conjecture*

02/03/2020 10:50, Room 417, **Ivan Panin** (St. Petersburg Department of Steklov Mathematical Institute), *Multivalued mappings and multivalued homotopies*

16/03/2020 10:50, Room 417, **Evgeniy Karabut** (Lavrentyev Institute of Hydrodynamics, NSU), *Finding exact solutions of the free boundary problem in fluid dynamics*

13/04/2020 14:00, Zoom, **Alexandra Skripchenko** (HSE, Skoltech), *Systems of isometries: dynamics and topology*

20/04/2020 14:00, Zoom, **Di Yang** (ISTC, Hefei), *Matrix resolvent, Volterra lattice hierarchy, and the modified GUE partition function*

27/04/2020 14:00, Zoom, **Jie Wu** (Hebei Normal University), *A universal topological approach to data science*

04/05/2020 14:00, Zoom, **Alexei Penskoi** (MSU, Independent University of Moscow, HSE), *Isoperimetric inequalities for Laplace eigenvalues on the sphere and the real projective plane*

11/05/2020 14:00, Zoom, **Dmitry Millionshchikov** (MSU, Steklov Mathematical Institute), *Invariant geometry on nilmanifolds and narrow Lie algebras*

18/05/2020 14:00, Zoom, **Tian Xu** (Tianjin University), *Noninear Dirac equations on compact spin manifolds*

25/05/2020 14:00, Zoom, **A. Sorrentino** (Universita degli Studi di Roma "Tor Vergata"), *Action-minimizing methods and invariant Lagrangian graphs*

01/06/2020 14:00, Zoom, **Mikhail Dubashinskii** (Saint Petersburg State University), *Infinite excitation limit: horocyclic chaos*

08/06/2020 14:00, Zoom, **Jie Wu** (Hebei Normal University), *Braided descriptions of homotopy groups of the 2-Sphere*

15/06/2020 14:00, Zoom, **Dmitry Kaledin** (Steklov Mathematical Institute, HSE), *Non-Kaehler complex surfaces (after Ornea-Verbitsky-Vuletescu)*

22/06/2020 14:00, Zoom, **Leonid Polterovich** (Tel Aviv University), *Geometric facets of quantization*

29/06/2020 14:00, Zoom, **Rinat Kashaev** (University of Geneva), *On the spectral problem of a three term difference operator*

18/09/2020 14:00, Zoom, **Sergey Gorchinskiy** (Steklov Mathematical Institute), *Arithmetic geometry panorama or for which Scholze received the Fields Medal*

28/09/2020 14:00, Zoom, **Natal'ya Daurtseva** (Novosibirsk State University), *Almost Hermitian structures on S ^{6} I*

05/10/2020 14:00, Zoom, **Natal'ya Daurtseva** (Novosibirsk State University), *Almost Hermitian structures on S ^{6} II*

12/10/2020 14:00, Zoom, **Vladislav Shubin** (Novosibirsk State University), *Rational integrals of two-dimensional geodesic flows*