AKTUELLES

Arbeitsgruppe für Stochastische Analysis

2024

Workshops
Workshops

GEN-Y research workshop in stochastic analysis

08–12 April 2024, Münster, Germany

Supported by the Cluster of Excellence Mathematics Münster

Organisers:

  • Simon Gabriel (simon.gabriel@uni-muenster.de)
  • Markus Tempelmayr (markus.tempelmayr@uni-muenster.de)

Bringing together a small group of leading young experts in their respective research areas, the goal of the workshop is to stimulate collaboration and exchange between participants. The event will provide specialists' points of view  on recent developments in stochastic analysis, with a particular focus on singular stochastic PDEs. The workshop is exclusively aimed at postdocs in stochastic analysis, as well as PhD students at the University of Münster.

Workshop webpage: Link

Gäste
Gäste

23.04.-26.04.2024

  • Dr. Trishen Gunaratnam (Universität Genf)

09.04.-11.04.2024

  • Sarah-Jean Meyer (University of Oxford)

07.01.-11.01.2024

  • Dr. Pawel Duch (Adam Mickiewicz University, Poznan)

 

Vorträge
Vorträge

Mathematics Münster Mid-Term Conference

Münster | 25.  27. März 2024

The conference is a broad mathematical conference across all areas aimed at the highest standards.
We would like to draw a picture of current developments in mathematics and get an overview of important results.

Talk by Hendrik Weber on "Noise, differential equations and quantum fields" (Wed 27 March 14:30)

For more information see: Workshop link

 


 

MPI Leipzig - Münster Retreat

Großbothen/Grimma | 26. — 28. Feb. 2024

Joint retreat by Felix Otto and workgroup members and Hendrik Weber and workgroup members 

 


 

Stochastic Partial Differential Equations

THE ERWIN SCHRÖDINGER INTERNATIONAL INSTITUTE FOR MATHEMATICS AND PHYSICS (ESI), WIEN |
FEB. 12, 2024 — FEB. 16, 2024

Stochastic partial differential equations arise naturally in several models of random phoenomena, in such fields as biology, physics and engineering. In particular, while deterministic models represent an efficient tool to describe time-evolution of real-world systems, they fail in rendering the presence of possible microscopic uncertainty of the model. Such randomness components may be related to several factors and are usually tracked through the introduction of a stochastic source of randomness in the equations involved. One of the most challenging goal of the mathematics of stochastic partial differential equations is the understanding of quantitative and qualitative properties of solutions and their dependence on the coefficients.
The aim of the workshop is to bring together leading experts, as well as a number of talented young researchers and to share fresh information on new results and future perspectives. The stay at the Institute will promote informal interaction progress in collaborations.

Talk by Hendrik Weber on joint work with Salvador Esquivel A priori bounds for subcritical fractional φ4 on T3

For more information see: https://www.esi.ac.at/events/e507/

 


 

Bielefeld Stochastic afternoon

Bielefeld | 17. Jan. 2024

Talks by Guilherme De Lima Feltes on A priori bounds for 2-d generalised Parabolic Anderson Model
and Salvador Cesar Esquivel Calzada on A priori bounds for the dynamic fractional Phi4 model on the torus

2023

Workshops
Workshops

Stochastic Analysis meets QFT - Critical Theory

University of Münster, June 12-14, 2023

Supported by the ERC Grant "Global Estimates for Singular Stochastic PDEs" and the Cluster of Excellence Mathematics Münster

Organisers:

  • Ajay Chandra (Imperial College)
  • Hendrik Weber (Münster)
  • Raimar Wulkenhaar (Münster)

Over the last years, a number of new methods from stochastic analysis have been developed that allowed a new perspective on constructive field theory. Among these are the theory of singular stochastic PDEs, Barashkov-Gubinelli’s variational approach, and constructive approaches to Polchinski's continuous renormalisation group flow. While much progress has been made on controlling small scales for subcritical/superrenormalisable models there is much less known regarding the same question  for critical/just-renormalizable models.

The constructive renormalisation programme has been successfully applied to quantum field theories of matrix models and tensor models. Matrix models tend to be asymptotically safe and tensor models asymptotically free at their critical dimension. These models are comparably simple and thus provide an ideal target to extend the above stochastic analysis methods to critical dimension.

The aim of this short workshop is to bring together some leading experts from both the stochastic analysis community and the QFT community to explore these exciting developments further.

Playlist talks (YouTube Mathematics Münster Channel): Link
(Note: Clicking on the link will take you to the YouTube website. During this process, data will be transmitted to YouTube.)

  Mon 12 June Tue 13 June Wed 14 June
9:00-9:50

Nikolay Barashkov

Margherita Disertori Nguyen Viet Dang
9:50-10:20 Coffee break
10:20-11:10 Rongchan Zhu
Slides
Yvain Bruned
Slides
Alexander Hock
Slides
11:10-11:30 Break
11:30-12:20 Razvan Gurau
Slides
Nikos Zygouras
Slides
Sabine Harribey
Slides
12:20-14:00 Lunch
14:00-14:50 Francesco de Vecchi
Slides
Martin Hairer Vincent Rivasseau
Slides
14:50-15:20 Coffee break
15:20-16:10 Nicolas Perkowski Hao Shen Léonard Ferdinand
Slides
16:10-16:30 Break
16:30-17:20 Xiangchan Zhu
Slides
Ilya Chevyrev
Slides
Thomas Krajewski
Slides
17:20-17:30 Break
17:30-18:20 Luca Fresta   Zhituo Wang
Slides
18:30-21:00 Reception:
Wine + Cheese
Conference Dinner 
A2 Restaurant
Reception:
Wine + Cheese

For more information see https://www.uni-muenster.de/MathematicsMuenster/events/2023/stochastic-analysis-meets-QFT.shtml

Gäste
Gäste

4.12.-07.12.2023

  • Dr. Tommaso Rosati (University of Warwick)

14.11.- 15.11.2023

  • Dr. Mitia Duerinckx (Université Libre de Bruxelles)

12.06.-15.06.2023

  • Simon Gabriel (University of Warwick)

19.04.-23.04.2023

  • Prof. Dr. Jean-Christoph Mourrat (École normale supérieure de Lyon)

17.04.-18.04.2023

  • Prof. Dr. Benjamin Gess (Universität Bielefeld)
  • Dr. Paul Gassiat (Université Paris-Dauphine)

27.02.-03.03.2023

  • Dr Giuseppe Cannizzaro (University of Warwick)

20.02.-24.02.2023

  • Dr Ajay Chandra (Imperial College London)
  • Dr Pavlos Tsatsoulis (Universität Bielefeld)

Dr Pavlos Tsatsoulis hält einen Vortrag über Lyapunov exponents and synchronisation by noise for systems of SPDEs am Mi 22.02. um 17:00 in Raum SRZ 216

Vorträge
Vorträge

PDE Colloquium

Universität Münster / 20. Juni 2023

Markus Tempelmayr (neues Gruppenmitglied seit Juni 2023) hält einen Vortrag über Some recent progress on quasilinear SPDEs am Die 20. Juni 14:15 Raum SRZ 203

 


 

Conference on Hopf algebras, operas, deformations of singular dynamics

Université de Lorraine, Nancy / 21.-23. Juni 2023

Markus Tempelmayr hält einen Vortrag über Multi-index based regularity structures for quasilinear SPDEs

 


 

Summer School on Wave Turbulence

MIT, Cambridge / July 24-28, 2023

Sponsored by the Simons Collaboration on Wave Turbulence

Four Hour Short Course By:

  • Raffaele Ferrari (MIT)
  • Isabelle Gallagher (Ecole Normale Supérieure)
  • Jacques Vanneste (University of Edinburgh)
  • Hendrik Weber (University of Münster)
  • Miguel Escobedo (Universidad del País Vasco)

This summer school will introduce participants to several topics in partial differential equations at the intersection of mathematical analysis and physics through five lecture series, covering both theory and application. There are two main themes: kinetic equations describing large systems of interacting waves or particles and singular stochastic PDE. The target audience is graduate students and early-career researchers.

Application deadline: 15 May 2023

For more information see https://math.mit.edu/events/wave-turbulence/

 


 

43rd Conference on Stochastic Processes and their Applications

Lisbon, Portugal from 24 to 28 July 2023

Organised under patronage of the Bernoulli Society

Session IS12 - Singular SPDEs

Session Organiser: Hendrik Weber, Universiy of Münster

  • Michael Hofstetter, University of Cambridge
  • Hao Shen, University of Wisconsin-Madison
  • Yu Deng, University of Southern California

For more information see https://www.spa2023.org/invitedsessions

2022

ESI Medal 2022 for Prof. Martin Hairer / Award Ceremony

Universität Wien, November 4 2022

Prof. Hendrik Weber (University of Münster): Convergence of the Ising-Kac model to Phi-4 in three dimensions

Poster