Veranstaltungen
- 4. – 6. Februar 2026 (WIAS-ESH)
- Workshop/Konferenz: Algebraic and geometric aspects of signatures and rough analysis
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Veranstalter
Technische Universität Berlin
WIAS Berlin
- 6. Februar 2026 (WIAS-405-406)
- Workshop/Konferenz: Northern-German Network on Networks
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, 4. Etage, Raum: 405/406
Abstrakt
The aim of the symposium is to create an opportunity for researchers in network dynamical systems working in (Northern) Germany to connect, to regularly meet, and to exchange ideas. The meeting is intended to be the first in a regular series of symposia which will take place at WIAS, University of Hamburg and, potentially, also other places.
Veranstalter
WIAS Berlin
Universität Hamburg
- Mittwoch, 11.02.2026, 10:00 Uhr (WIAS-ESH)
- Forschungsseminar Mathematische Statistik
Béatrice Matteo, University of Geneva:
Kernel ridge regression for spherical responses
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Weitere Informationen
Zoom-Meeting beitreten: https://hu-berlin.zoom-x.de/j/68089797717?pwd=ek1XRmZuYUJIL2tObTlCSzRBUXNiQT09 Meeting-ID: 680 8979 7717 Passwort: 016303
Veranstalter
Humboldt-Universität zu Berlin
Universität Potsdam
WIAS Berlin
- Mittwoch, 11.02.2026, 11:00 Uhr (WIAS-ESH)
- Forschungsseminar Mathematische Statistik
Ho Yun, École Polytechnique Fédérale de Lausanne (EPFL):
Linear monge is all you need
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Weitere Informationen
Zoom-Meeting beitreten: https://hu-berlin.zoom-x.de/j/68089797717?pwd=ek1XRmZuYUJIL2tObTlCSzRBUXNiQT09 Meeting-ID: 680 8979 7717 Passwort: 016303
Veranstalter
Humboldt-Universität zu Berlin
Universität Potsdam
WIAS Berlin
- Mittwoch, 11.02.2026, 11:30 Uhr (WIAS-406)
- Seminar Interacting Random Systems
Elias Zimmermann, Universität Leipzig:
Quantitative mixing properties for Gibbs fields on bounded degree graphs
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, 4. Etage, Weierstraß-Hörsaal (Raum: 406)
Abstrakt
Mixing properties are an important object of study within the theory of Gibbs measures. In this talk I will focus on two quantitative mixing properties: exponential $phi$-mixing (also called weak mixing) and exponential $psi$-mixing (also called ratio weak mixing). These mixing conditions are well studied for Gibbs fields on square lattices. For instance, the unique Gibbs state of the Ising model above the critical temperature exhibits both types of mixing. In this talk we shall consider random fields on arbitrary graphs with bounded degree. While exponential $phi$-mixing is known to hold whenever Dobrushin's uniqueness condition is satisfied, exponential $psi$-mixing has been studied very little in this general setting. The main result I'm going to present shows that for Markovian random fields $phi$-mixing with sufficiently high exponential decay rate implies $psi$-mixing with slower, but still exponential decay rate. This generalizes a result of Alexander for square lattices and allows to formulate a general criterion for exponential $psi$-mixing of Gibbs measures in terms of the corresponding Dobrushin constant. I will illustrate how this criterion applies to Ising and Potts models on regular trees.
Weitere Informationen
Seminar Interactin Random Systems
Veranstalter
WIAS Berlin
- Mittwoch, 11.02.2026, 14:15 Uhr (WIAS-ESH)
- Berliner Oberseminar „Nichtlineare partielle Differentialgleichungen” (Langenbach-Seminar)
Dr. Andrea Poiatti, Universität Wien, Österreich:
A Navier--Stokes/Mullins--Sekerka system with different densities: Weak solutions
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Abstrakt
In this talk, I would like to introduce a model for the flow of two incompressible, viscous and immiscible fluids in a bounded domain, with different densities and viscosities. This model consists of a coupled system of Navier--Stokes and Mullins--Sekerka type parts, and can be obtained from the asymptotic limit of the diffuse interface model introduced by Abels, Garcke, and Grün in 2012. I will introduce a new notion of weak solutions and prove its global in time existence, together with a consistency result. This new notion of solution allows to include the case of different densities of the fluids, a sharp energy dissipation principle `a la De Giorgi, as well as a weak formulation of the constant contact angle condition at the boundary, which were left open in the previous notion of solution proposed by H. Abels and M. Röger in 2009. This is a joint project with H. Abels.
Weitere Informationen
Oberseminar “Nichtlineare partielle Differentialgleichungen” (Langenbach-Seminar)
Veranstalter
Humboldt-Universität zu Berlin
WIAS Berlin
- 12. – 13. Februar 2026 (WIAS-ESH)
- Workshop/Konferenz: Widening the Scope of Rough and Stochastic Analysis -- Rough Women Reach Out!
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Veranstalter
Technische Universität Berlin
WIAS Berlin
- 2. – 4. März 2026 (IHP)
- Workshop/Konferenz: Leibniz MMS Days 2026
mehr ... Veranstaltungsort
Leibniz Institute for High Performance Microelectronics Frankfurt/Oder
Veranstalter
Leibniz Institute for High Performance Microelectronics Frankfurt/Oder
WIAS Berlin
- 16. – 18. März 2026 (WIAS-ESH)
- Workshop/Konferenz: Workshop Optimal Transport and Noise: OT Meets (S)PDEs
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Veranstalter
Technische Universität Berlin
WIAS Berlin
- 1. – 5. Juni 2026 (WIAS-ESH)
- Workshop/Konferenz: ESGI 194 - The Berlin Study Group with Industry
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Veranstalter
WIAS Berlin
- 6. – 8. Juli 2026 (WIAS-ESH)
- Workshop/Konferenz: Spreading Dynamics in Random Environment
mehr ... Veranstaltungsort
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal
Veranstalter
WIAS Berlin