Oberseminar Analysis/Numerik
Prof. Dr. Konstantin Pankrashkin
Oberseminar Analysis/Numerik
(also known as OLANA: Oldenburg Analysis Seminar)
Regular participants in the summer term 2025
Alexey Chernov, Daniel Grieser, Alexander Meiners, Konstantin Pankrashkin, Alvaro Sanchez Hernandez, Matheus Hudson Gama dos Santos, Frank Schöpfer, Ivan Shestakov, Firoj Sk, Tung Le, Hannes Uecker, Boris Vertman, Nick Wulbusch
Sommersemester 2025
The seminar takes place weekly on Thursdays at 14:15 in W1 1-117.
For questions or talk requests, please contact alvaro.sanchez.hernandez@uni-oldenburg.de
Date | Time | Speaker | Title |
|---|---|---|---|
17.04.2025 | 14:15 |
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24.04.2025 | 14:15 |
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01.05.2025 |
| Tag der Arbeit | Kein Vortrag |
08.05.2025 | Alexander Meiners (Carl von Ossietzky Universität Oldenburg) | ||
15.05.2025 | 14:15 |
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22.05.2025 | 14:15 |
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29.05.2025 |
| Christi Himmelfahrt | Kein Vortrag |
05.06.2025 | 14:15 | Lothar Schiemanowski (Christian-Albrechts-Universität zu Kiel) | |
12.06.2025 | 14:15 | Oliver Fürst (Universität Bonn) | |
19.06.2025 | 14:15 |
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26.06.2025 | 14:15 | Robert Schlesier (Universität Leipzig) | |
03.07.2025 | 14:15 | Abdallah Maichine (Mohammed V University, Rabat) | Characterisation of invariant operators under magnetic translations and applications |
10.07.2025 | 14:15 | Sven-Ole Behrend (Christian-Albrechts-Universität zu Kiel) | The connections between Hyperkähler and special Kähler structures |
17.07.2025 | 14:15 |
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24.07.2025 | 14:15 | Roland Welter (Universität Hamburg) | TBA |
Wintersemester 2024-2025
The seminar takes place weekly on Thursdays at 14:15 in W1 0-006.
For questions or talk requests, please contact badreddine.benhellal@uol.de
Date | Time | Speaker | Title |
|---|---|---|---|
24.10.2024 | 14:15 | ||
31.10.2024 | 14:15 | ||
07.11.2024 | 14:15 | Daniel Grieser (Oldenburg) | Geometry of singular spaces |
14.11.2024 | 14:15 | ||
21.11.2024 | 14:15 | Max Pfeffer (Universität Göttingen) | Manifold optimization in data science |
28.11.2024 | 14:15 | ||
05.12.2024 | 14:15 | ||
12.12.2024 | 14:15 | Rares Stan (Institute of Mathematics of the Romanian Academy & Universität Göttingen) | The Selberg zeta function on degenerating hyperbolic surfaces |
19.12.2024 | 14:15 | ||
09.01.2025 | 14:15 | Ursula Ludwig (Université Côte d'Azur) | Torsion and refined torsion on singular spaces |
16.01.2025 | 14:15 | ||
23.01.2025 | 14:15 | ||
30.01.2025 | 14:15 | ||
| 20.02.2025 | 14:15 | Mikko Salo (University of Jyväskylä) | Rigidity in the Lorentzian Calderón problem |
| 10.03.2025 | 10:15 | Christopher Judge (Indiana University) | Circle actions on manifolds and the generic irreducibiity of Laplace eigenspaces |
Additional sessions:
- 02.10.2024: Groningen-Oldenburg-Utrecht seminar on Analysis and Mathematical Physics, Oldenburg
- 10.-11.10.2024: Facets of Mathematics: Discrete, Smooth, and Singular (in honor of Daniel Grieser), Oldenburg
- 31.01.2025: Bremen-Hamburg²-Kiel-Oldenburg-Seminar Funktionalanalysis und ihre Anwendungen, Oldenburg
Sommersemester 2024
The seminar takes place weekly on Thursdays at 14:15 in W1 0-006.
For questions or talk requests, please contact badreddine.benhellal@uol.de
Date | Time | Speaker | Title |
11.04.2024 | 14:15 | Shahnaz Farhat (Constructor University) | Quantum-classical motion of charged particles interacting with scalar fields. |
18.04.2024 | 14:15 | Simon Nowak (Universität Bielefeld) | Pointwise estimates and fine higher regularity for nonlinear nonlocal problems |
25.04.2024 | 14:15 |
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02.05.2024 | 14:15 |
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09.05.2024 |
| ( Christi Himmelfahrt ) | no seminar |
16.05.2024 | 14:15 | Alexei Penskoi (Bonn/Moscow) | Isoperimetric inequalities for eigenvalues of the Laplace-Beltrami operator on surfaces |
23.05.2024 | 14:15 |
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30.05.2024 | 14:15 | Bartlomiej Dyda (Wroclaw University) | On fractional Hardy inequalities |
06.06.2024 | 14:15 |
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13.06.2024 | 14:15 | Alessandro Pietro Contini (Hannover) | The isomorphisms of the scattering algebra |
20.06.2024 | 14:15 | Konstantin Merz (Braunschweig) | |
27.06.2024 | 14:15 | Cipriana Anghel (Universität Göttingen) | On the spectrum of the Dirac operator on degenerating Riemannian surfaces |
04.07.2024 | 14:15 | Andreas Defant (Oldenburg) | Projection constants for spaces of multivariate polynomials |
Wintersemester 2023-2024
The seminar takes place weekly on Thursdays at 14:15 in W1 0-006.
For questions or talk requests, please contact badreddine.benhellal@uol.de
| Date | Time | Speaker | Title |
26.10.2023 | 14:15 | Luiz Hartmann (Sao Carlos, Brazil) | An Atiyah-Bott formula for the Lefschetz number of a singular foliation |
02.11.2023 | 14:15 | ||
09.11.2023 | 14:30 | Konstantin Pankrashkin (UOL) | Introduction to third-party funding for newbies |
16.11.2023 | 14:15 | Firoj Sk (UOL) | On Morrey’s inequality in fractional Sobolev spaces |
23.11.2023 | 14:15 | ||
30.11.2023 | 14:15 | ||
07.12.2023 | 14:15 | Charlotte Dietze (LMU München) | Spectral estimates for Schrödinger operators with Neumann boundary conditions on Hölder domains |
14.12.2023 | 14:15 | ||
21.12.2023 | 14:15 | Sven Jarohs (Uni Frankfurt) | Differentiability of the nonlocal-to-local transition in fractional Poisson problems |
11.01.2024 | 14:15 | ||
18.01.2024 | 14:15 | ||
25.01.2024 | 14:15 | Michela Egidi (Rostock) | Sampling sets on metric graphs and bounds on the L2-norm of eigenfunctions |
01.02.2024 | 14:15 |
Further seminars:
- 02.02.2024: Bremen-Hamburg2-Kiel-Oldenburg seminar on functional analysis, Bremen,
- 16.02.2024: Groningen-Oldenburg-Utrecht seminar on spectral theory, Groningen.
Sommersemester 2023
The seminar takes place weekly on Thursdays at 14:15 in W1 0-006.
For questions or talk requests, please contact badreddine.benhellal@uol.de
| Date | Time | Speaker | Title |
20.04.2023 | 14:15 | ||
27.04.2023 | 14:15 | ||
04.05.2023 | 14:15 | ||
11.05.2023 | 14:15 | ||
18.05.2023 | 14:15 | No Talk | Christi Himmelfahrt |
25.05.2023 | 14:15 | Jørgen Lye (Hannover) | Geodesics orbiting a singularity |
01.06.2023 | 14:15 | Raffael Hagger (Kiel) | On the spectrum of the double-layer operator on dilation-invariant domains |
08.06.2023 | 14:15 | ||
15.06.2023 | 14:15 | ||
22.06.2023 | 14:15 | Andreas Defant (Oldenburg) | Scaling a theorem of Hararld Bohr |
29.06.2023 | 14:15 | Ingo Witt (Göttingen) | Hyperbolic problems with totally characteristic boundary |
06.07.2023 | 14:15 | Orville Damaschke (Oldenburg) | An L²-index theorem for the Atiyah-Singer-Dirac operator on globally hyperbolic spacetimes |
13.07.2023 | 14:15 |
Wintersemester 2022-2023
The seminar takes place weekly on Thursdays at 14:15 in W1 0-006.
For questions or talk requests, please contact badreddine.benhellal@uol.de
| Date | Time | Speaker | Title |
| 27.10.2022 | 14:15 | ||
| 03.11.2022 | 14:15 | Luiz Hartmann (Sao Carlos, Brazil) | Zeta and Fredholm determinants of self-adjoint operators |
| 10.11.2022 | 14:15 | Michel Ferré (Ben-Gurion university, Israel) | Invasion reversal by front transitions and their implications for ecosystem management |
| 17.11.2022 | 14:15 | No talk | |
| 24.11.2022 | 14:15 | No talk | |
| 01.12.2022 | 14:15 | Badreddine Benhellal (Carl von Ossietzky Universität Oldenburg) | Spectral Analysis of Dirac Operators with delta interactions |
| 08.12.2022 | 14:15 | Daniel Grieser (Carl von Ossietzky Universität Oldenburg) | The Calderón projector and Dirichlet-Neumann operator for fibred cusp geometries |
| 15.12.2022 | 14:15 | No talk | |
| 22.12.2022 | 14:15 | No talk | |
| 12.01.2023 | 14:15 | No talk | |
| 19.01.2023 | 14:15 | No talk | |
| 26.01.2023 | 14:15 | Noema Nicolussi (Universität Potsdam) | Riemann surfaces and graphs: Asymptotics of canonical measures and Green functions |
| 02.02.2023 | 14:15 | T.B. | Bachelor thesis |
| 09.03.2023 | 14:15 | Brice Flamencourt (Universität Stuttgart) | Cauchy spinors on 3-manifolds |
Sommersemester 2022
The seminar takes place weekly on Thursdays at 14:15 (German time).
For questions or talk requests, please contact tobias.marxen@uni-oldenburg.de
| Date | Time | Speaker | Title |
| 28.04.2022 | 14:15 | ||
| 05.05.2022 | 14:15 | ||
| 12.05.2022 | 14:15 | Marco Vogel (Oldenburg) | Spektraleigenschaften von Robin-Laplace-Operatoren auf spitzen unendlichen Kegeln |
| kein Oberseminar | |||
| Feiertag | Himmelfahrt | ||
| 02.06.2022 | 14:15 | ||
| 09.06.2022 | 14:15 | Alexander Meiners (Oldenburg) | |
| kein Oberseminar | |||
| 23.06.2022 | 14:15 | Dennis Sobotta (Oldenburg) | Geometric Resolution of Generalized Semi-Classical Operators |
| 30.06.2022 | 14:15 | Nick Wulbusch (Oldenburg) | Bayesian parameter identification of impedance boundary condition for Helmholtz problems |
| Vortrag verlegt auf den 21.07. | |||
| kein Oberseminar | |||
| 21.07.2022 | 14:15 | Kiyan Naderi (Oldenburg) | Trace theorems for regular geometrical weighted trees |
Wintersemester 2021-2022
The seminar takes place weekly on Thursdays at 14:15 (German time). Covid willing, the seminar takes place physically in W01 0-006. If requested by the speaker, the talk will take place online via BBB. In this case there will also be a live streaming of the talk in W01 0-006.
For questions or talk requests, please contact jorgen.olsen.lye@uni-oldenburg.de
Sommersemester 2021
The online seminar takes place weekly on Thursdays at 14:15 (German time).
To attend, please contact konstantin.pankrashkin@uol.de
The announcements are forwarded to researchseminars.org/seminar/olana
Wintersemester 2020-2021
The online seminar takes place weekly on Thursdays at 14:15 (German time).
To attend, please contact konstantin.pankrashkin@uol.de
| Date | Time | Speaker | Title |
| 19.11.2020 | 14:15 | Jørgen Olsen Lye (UOL) | Yamabe flow on singular spaces |
| 26.11.2020 | 14:15 | Mohammad Talebi (UOL) | Spectral geometry on manifolds with fibered boundary |
| 03.12.2020 | 14:15 | Giuseppe Gentile (UOL) | On the prescribed graphical mean curvature flow on generalized Robertson-Walker spacetimes with asymptotically flat space-like slice |
| 10.12.2020 | 14:15 | Fedor Bakharev (Saint-Petersburg State U.) | Existence of the discrete spectrum of Dirichlet Laplacian in some unbounded domains |
| 17.12.2020 | 14:15 | Karl-Mikael Perfekt (U. of Reading) | Infinitely many embedded eigenvalues for the Neumann-Poincaré operator in 3D |
| 07.01.2021 | 14:15 | Tobias Marxen (UOL) | Ricci flow on incomplete manifolds |
| 14.01.2021 | 14:15 | Dario Prandi (U. Paris-Saclay, CNRS) | Point interactions for 3D sub-Laplacians |
| 21.01.2021 | 15:00 | Malte Behr (UOL) | Quasihomogeneous blow-ups and pseudodifferential calculus on SL(n,R) |
| 16:15 | Vladimir Rabinovich (Instituto Politécnico Nacional, Mexico) | Three-dimensional Dirac operators with singular potentials supported on unbounded surfaces | |
| 28.01.2021 | 14:15 | Brice Flamencourt (U. Paris-Saclay) | On the convergence of Dirac operators with large masses |
| 04.02.2021 | 14:15 | Jérémy Mougel (U. of Göttingen) | A regularity result for the bound states of N-body Schrödinger operators: Blow-ups and Lie manifolds |
The announcements are forwarded to researchseminars.org/seminar/olana.