# Spectral theory and related topics

mathematical physics analysis of PDEs spectral theory

 Audience: Researchers in the topic Seminar series time: Thursday 14:30-15:30 in your time zone, UTC Organizers: Fedor Bakharev*, Roman Bessonov *contact for this listing

Letter from the organizers (27.02.2022)

Dear colleagues,

we, the organizers of the seminar (Fedor Bakharev an Roman Bessonov), completely condemn Russia’s invasion of Ukraine and the conduct of military action of any kind. Right now all our thoughts are about all those people who are now forced to be in basements, in the subway, in bomb shelters in many cities of Ukraine, about all those who were forced to leave their homes.

We think that any kind of isolation and breaking of ties between Russian and non-Russian scientists cannot lead to anything good, and sharing new results is an important part of our work. However we decided to stop the work of our seminar until more peaceful time. Maybe we will continue later…

We apologize to the speakers who kindly agreed to give a talk on our seminar during this term. We hope that we will have possibility to invite them later.

With best regards, Fedor Bakharev and Roman Bessonov.

Upcoming talks
Past talks
ThuFeb 2414:30Vladimir ProtasovThe stability of dynamical systems with switches: a geometric approach
ThuFeb 1714:30Simon LarsonOn the spectrum of the Kronig–Penney model in a constant electric field
ThuFeb 1014:30Grigori RozenblumSpectral properties of zero order pseudodifferential operators and applications to the NP operator in 3D elasticity
ThuDec 2314:30Boris VainbergOn the Near-Critical Behavior of Continuous Polymers
ThuDec 1614:30Jonathan RohlederEigenvalue inequalities for Laplace and Schrödinger operators
ThuDec 0914:30Iosif PolterovichEigenvalue inequalities on surfaces: from sharpness to stability
ThuDec 0214:30Antoine HenrotBounds for the first (non-trivial) Neumann eigenvalue and partial results on a nice conjecture
ThuNov 2514:00Rupert FrankEigenvalue bounds for Schrodinger operators with complex potentials
ThuNov 1814:30Ole BrevigIdempotent Fourier multipliers acting contractively on $L^p$ and $H^p$
ThuNov 1114:30Semyon DyatlovWhat is quantum chaos?
ThuOct 2814:30Ari LaptevOn a conjecture by Hundertmark and Simon
ThuOct 2114:30Yurii BelovOn the chain structure of de Branges spaces
ThuOct 1414:30Jake FillmanAlmost-Periodic Schr\"odinger Operators with Thin Spectra
ThuOct 0714:30Sergey DenisovSpectral theory of Jacobi matrices on trees whose coefficients are generated by multiple orthogonality
ThuSep 3014:30Roman BessonovThe logarithmic integral and Möller wave operators
ThuSep 2314:30Laurent BaratchartStability of periodic delay systems and harmonic transfer function
ThuSep 1614:30Brian SimanekUniversality Limits for Orthogonal Polynomials
WedJun 0214:15Karl-Mikael PerfektInfinitely many embedded eigenvalues for the Neumann-Poincaré operator in 3D
WedMay 2614:15David DamanikZero measure spectrum for multi-frequency Schrödinger operators
WedMay 1916:15Maxim ZinchenkoBounds and asymptotics for Chebyshev polynomials
WedMay 1214:15Andrew ComechVirtual levels and virtual states of Schrodinger operators
WedMay 0514:15Luis SilvaA functional model for symmetric operators and its applications to spectral theory
WedApr 2816:15Alexei PoltoratskiPointwise convergence of scattering data
WedApr 2114:15Sergey KhrushchevUniformly convergent Fourier series with universal power parts on closed subsets of measure zero
WedApr 1414:15Patrick GerardSpectral theory of first order operators with Toeplitz coefficients on the circle and applications to the Benjamin-Ono equation
WedApr 0714:15Peter KuchmentThe nodal mysteries
WedMar 3114:15Leonid ParnovskiFloating mats and sloping beaches: spectral asymptotics of the Steklov problem on polygons
WedMar 2414:15Jari TaskinenSpectra of the Robin-Laplace- and Steklov-problems in bounded, cuspidal domains
WedMar 1714:15Wencai LiuIrreducibility of the Fermi variety for discrete periodic Schr\"odinger operators
WedMar 1014:15Peter YuditskiiReflectionless canonical systems: almost periodicity and character-automorphic Fourier transforms
WedMar 0314:15Christophe HazardCuriosities about the spectrum of a cavity containing a negative material
WedFeb 2415:00Svetlana JitomirskayaSpectral properties of the unbounded GPS model
WedFeb 1714:30Alexander SobolevOn spectral properties of the one-particle density matrix
MonDec 2113:30Alexander LogunovNodal sets, quasiconformal mappings and how to apply them to Landis’ conjecture
TueDec 1514:30Frédéric KloppA new look at localization
TueDec 0814:30Andrii KhrabustovskyiHomogenization of the Robin Laplacian in a domain with small holes: operator estimates
TueDec 0114:30Anne-Sophie Bonnet-Ben DhiaA new complex frequency spectrum for the analysis of transmission efficiency in waveguide-like geometries
TueNov 2414:30Alexander FedotovOn Hierarchical Behavior of Solutions to the Maryland Equation in the Semiclassical Approximation
TueNov 1714:30Konstantin PankrashkinSome convergence results for Dirac operators with large parameters
TueNov 1013:30Denis BorisovAccumulation of resonances and eigenvalues for operators with distant perturbations
TueNov 0314:30Pavel ExnerSpectral properties of spiral quantum waveguides
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