27.01.2023, 11:00  –  Zoom Meeting
Arbeitsgruppenseminar Analysis

Integrability, Painlevé Singularities and Fixed Points at Infinity

Jeremy Schiff (Bar-Ilan University, Israel)

I will review the notion of integrability for different kinds of (systems of) ordinary differential equations, and the relationship with the Painlevé property, that the only movable singularities of... 

30.01.2023, 14:00  –  Campus Golm, Haus 9, Raum 2.22
Forschungsseminar Wahrscheinlichkeitstheorie

Homogenisation of a multivariate diffusion with semipermeable reflecting interfaces

Olga Aryasova (Inst. of Geophysics, Nat. Acad. of Sciences of Ukraine / Friedrich–Schiller–Univ. Jena)

We study the homogenization problem for a multivariate stochastic differential equations with local times that determine semipermeable reflecting hyperplane interfaces. We show that this system has a... 

01.02.2023, 14:15 Uhr  –  Raum 2.09.2.22 und Zoom, Public Viewing im Raum 2.09.0.17
Institutsveranstaltung

Maria-Weber lecture

Dr. Siegfried Beckus (UP)

Title: Dry Ten Martini Problem for Sturmian Dynamical Systems

Abstract: Are all possible spectral gaps, predicted by the Gap labelling theorem, open for a given Schrödinger operator? This is the so... 

02.02.2023, 16:00  –  Raum 1.10
Forschungsseminar Differentialgeometrie

Fundamental solutions of partial derivatives on a half-space

Onirban Islam

The Dirac operator on a globally hyperbolic spacetime admits unique retarded and advanced fundamental solutions. They are well-known to be Lagrangian distributions. Recently, Bär and Gehring... 

08.02.2023, 13:30 Uhr  –  Haus 9, Raum 0.17 und Zoom
Forschungsseminar Diskrete Spektraltheorie

Regularity results for locally integrable subharmonic functions on local Dirichlet spaces

Prof. Dr. Peter Stollmann (Chemnitz)

Abstract: We report on recent results from a joint work with B. Güneysu, S. Pigola and. G. Veronelli. Using a new notion of subharmonicity we can prove a version of the Braverman-Milatovic-Shubin...