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Seminar on stochastic processes

Members of the probability group are involved in co-organizing remote specialized seminars that take place on Tuesdays and Thursdays:

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Spring Semester 2025

Date / Time Speaker Title Location
26 February 2025
17:15-18:45 		Dr. Titus Lupu
LPSM, Sorbonne Université
Details

Seminar on Stochastic Processes

Title Relation between the geometry of sign clusters of the 2D GFF and its Wick powers
Speaker, Affiliation Dr. Titus Lupu, LPSM, Sorbonne Université
Date, Time 26 February 2025, 17:15-18:45
Location Y27 H12
Abstract In 1990 Le Gall showed an asymptotic expansion of the epsilon-neighborhood of a planar Brownian trajectory (Wiener sausage) into powers of 1/|log eps|, that involves the renormalized self-intersection local times. In my talk I will present an analogue of this in the case of the 2D GFF. In the latter case, there is an asymptotic expansion of the epsilon-neighborhood of a sign cluster of the 2D GFF into half-integer powers of 1/|log eps|, with the coefficients of the expansion being related to the renormalized (Wick) powers of the GFF.
Relation between the geometry of sign clusters of the 2D GFF and its Wick powersread_more
Y27 H12
5 March 2025
17:15-18:45 		Prof. Dr. Erich Baur
Berner Fachhochschule, Technik und Informatik
Details

Seminar on Stochastic Processes

Title Graduate Workshop Reinforcement
Speaker, Affiliation Prof. Dr. Erich Baur, Berner Fachhochschule, Technik und Informatik
Date, Time 5 March 2025, 17:15-18:45
Location Y27 H12
Graduate Workshop Reinforcement
Y27 H12
12 March 2025
17:15-18:45 		Prof. Dr. Erich Baur
Berner Fachhochschule, Technik und Informatik
Details

Seminar on Stochastic Processes

Title Graduate Workshop Reinforcement
Speaker, Affiliation Prof. Dr. Erich Baur, Berner Fachhochschule, Technik und Informatik
Date, Time 12 March 2025, 17:15-18:45
Location Y27 H12
Graduate Workshop Reinforcement
Y27 H12
26 March 2025
17:15-18:45 		Prof. Dr. Nicolas Curien
Equipe Probabilités et Statistique, Université Paris-Sud Orsay
Details

Seminar on Stochastic Processes

Title Scaling limits of the Luczak-Winkler growth algorithm
Speaker, Affiliation Prof. Dr. Nicolas Curien, Equipe Probabilités et Statistique, Université Paris-Sud Orsay
Date, Time 26 March 2025, 17:15-18:45
Location Y27 H12
Abstract Since the pioneering work of Aldous in the 1990s, it has been well established that large random trees converge towards a universal object: the Brownian tree. This object, which has become a pillar of modern probability, is a real random compact tree of fractal dimension 2. In this presentation, we will focus on different tree growth algorithms, such as the Rémy algorithm and the Luczak-Winkler algorithm. We will see how, by passing them to the limit, they give rise to diffusions taking values in the space of real trees, of which the Brownian tree constitutes the invariant law.
Scaling limits of the Luczak-Winkler growth algorithmread_more
Y27 H12
2 April 2025
17:15-18:45 		Dr. Alejandro Rosales Ortiz
Universität Zürich, Switzerland
Details

Seminar on Stochastic Processes

Title Graduate Workshop Reinforcement
Speaker, Affiliation Dr. Alejandro Rosales Ortiz , Universität Zürich, Switzerland
Date, Time 2 April 2025, 17:15-18:45
Location Y27 H12
Graduate Workshop Reinforcement
Y27 H12
9 April 2025
17:15-18:45 		Dr. Alejandro Rosales Ortiz
Universität Zürich, Switzerland
Details

Seminar on Stochastic Processes

Title Graduate Workshop Reinforcement
Speaker, Affiliation Dr. Alejandro Rosales Ortiz , Universität Zürich, Switzerland
Date, Time 9 April 2025, 17:15-18:45
Location Y27 H12
Graduate Workshop Reinforcement
Y27 H12
14 May 2025
17:15-18:30 		Prof. em. Dr. Marc Burger
ETH Zurich, Switzerland
Details

Seminar on Stochastic Processes

Title Farewell Lecture Prof. Marc Burger
Speaker, Affiliation Prof. em. Dr. Marc Burger, ETH Zurich, Switzerland
Date, Time 14 May 2025, 17:15-18:30
Location HG F 30
Farewell Lecture Prof. Marc Burger
HG F 30

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