Romain Panis, Univ. Geneva: The long-range Phi^4 model on Z^d (Oberseminar Mathematische Stochastik)
Wednesday, 24.04.2024 16:00 im Raum SRZ 216
We study the (discrete) Phi^4 model on Z^d with algebraically decaying long-range interactions. This model is the natural discrete analogue of the fractional continuous Phi^4 model.
We first describe some general properties of the phase transition that the model undergoes. Then, we study the nature of the critical scaling limits of the model, proving in particular the (marginal) triviality of these limits in dimension 3 with well-chosen interactions.
Angelegt am Monday, 18.03.2024 14:55 von Anita Kollwitz
Geändert am Wednesday, 17.04.2024 09:44 von Anita Kollwitz
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Dominik Schmid, Univ. Bonn: Approximating the stationary distribution of the open ASEP (Oberseminar Mathematische Stochastik)
Wednesday, 08.05.2024 14:00 im Raum SRZ 216
The exclusion process is one of the best-studied examples of an interacting particle system. In this talk, we consider the stationary distribution of asymmetric simple exclusion processes with open boundaries. We project the stationary distribution onto a subinterval, whose size is allowed to grow with the length of the underlying segment. Depending on the boundary parameters for the exclusion process, we provide sufficient conditions such that the projected stationary distribution is close in total variation distance to a product measure. This talk is based on joint work with Evita Nestoridi.
Angelegt am Monday, 05.02.2024 09:24 von Anita Kollwitz
Geändert am Wednesday, 14.02.2024 16:06 von Anita Kollwitz
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