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A list of past seminars is avalaible here
List of upcoming seminars
List of upcoming seminars
Our seminars are scheduled on Monday, at 2.30 pm (Italian time), unless specified. CT For the list of upcoming seminars, expand the menu ticking on the arrow.
Title: "Horizontal Mean Curvature Flow in the Heisenberg Group as Scaling Limit of an Interacting Particle System"
The seminar will be held at the Sala Seminari "blocco zero" (DISIM, UnivAq)
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
October 27th, Monday, 2025 - 14.30 at the GSSI Main Lecture Hall
title: "Constructing a weakly-interacting fixed point of the Fermionic Polchinski equation. "
The seminar will be held at the at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
November 10th, Monday, 2025 - 14.30 at the GSSI Main Lecture Hall
title: "Anomalous Regularization in Kazantsev-Kraichnan Model "
The seminar will be held at the at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
Each talk has a duratio of 30 miutes, inclued 5 minutes of questions
1) title: "The Matrix Product Ansatz from a probabilistic viewpoint "
Speaker: Federica Iacovissi
2) title: "The validity of spin-wave theory for quantum spin systems " speaker: Giuseppe Lipardi
3) title: "Freidlin-Wentzell solutions of discrete Hamilton Jacobi equations "
speaker: Giulia Pallotta
4) title: "On the weak coupling limit for the periodic quantum Lorentz gas"
Speaker: Vishnu Sanjay
The seminar will be held at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
January 12th, Monday, 2026 - 14.30 at the GSSI Main Lecture Hall
title: "The Phi^4_2 theory as limit of interacting inhomogeneous Bose gases. "
The seminar will be held at the at the GSSI Main Lecture Hall
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
January 26th, Monday, 2026 - 14.30
title: "The Boltzmann process "
The seminar will be held at the Sala Seminari del blocco zero (DISIM, UnivAq)
and will also be streamed through Zoom at the link:
https://gssi-it.zoom.us/j/87571297606?pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
"The Boltzmann process "
Date: January 26, 2026 (Monday) at 14.30.
on site: Sala Seminari del blocco zero (DISIM, UnivAq)
zoom: https://gssi-it.zoom.us/j/87571297606pwd=uaKzpEsOHBPbP9D2XxbNsbnYGoBbsk.1
Meeting ID: 875 7129 7606
Passcode: SMAQ2526
Abstracts
Abstracts
The Boltzmann equation describes the dynamics of a density in position and velocity of a rarified gas expanding in vacuum. Ludwig Eduard Boltzmann (1844 -1906) derived the Boltzmann equation, by assuming any gas molecule of a rarified gas to travel straight in vacuum until an elastic collision occurs with another molecule of the same gas. In the Boltzmann equation, only binary centered collisions are considered. In this talk we present the “Boltzmann process” [1], i.e the process which density evolves according to the Boltzmann equation. Using Ito formula, we prove that this is a solution of a stochastic differential equation of McKean Vlasov type, for which we prove the existence [2].
[1] Albeverio, S., Rüdiger B., Sundar P.: On the construction and identifcation of Boltzmann processes, Ensaios Mathemáticos, 38, 1-22, Papers in honor of Errico Presutti, Sociedade Brasileira de Mathematica (2023).
[2] Rüdiger B., Sundar P.: Identification and existence of Boltzmann processes, arxiv 2301.08662v2, 2025
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