Embedded Files
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. For the list of upcoming seminars, expand the menu ticking on the arrow.
October 21th Monday, 2024 - h 14.30 at Sala seminari del blocco zero (DISIM, UnivAq). - Franco Flandoli (Scuola Normale Superiore )
Title: "Reducing stochastic models in Climate, fluctuating Hydrodynamics and turbulent transport ",
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Statistical properties of dynamical systems: a functional analytic approach",
Roberto Castorrin (Scuola Normale di Pisa)
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Large deviations for binary collision models ",
Giada Basile (La Sapienza- Roma)
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: " New perspectives in zero range interactions quantum physics"
Rodolfo Figari (Gran Sasso Science Institute)
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "A criterion for crystallization in hard-core lattice particle systems "
Ian Jauslin (Rutgers University)
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "A Short Proof of Bose-Einstein Condensation for Ultra-Dilute Bose Gases "
Christian Brennecke (University of Bonn)
The seminar will be held at the GSSI Library
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
Title: "A Short Proof of Bose-Einstein Condensation for Ultra-Dilute Bose Gases "
The seminar will be held at the GSSI MHL
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
Title: "Vector-valued ferromagnetic spin models in random external fields"
The seminar will be held at the GSSI MHL
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
Title: "Equilibrium perturbation and incompressible limit for exclusion processes coupled through collision"
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Metastable behaviour of the two-dimensional Kawasaki dynamics in large volumes at low temperature and low density "
The seminar will be held at the GSSI Library (Please note the unusual time )
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
Title: "Longitudinal conductivity at integer quantum Hall transitions"
The seminar will be held at the GSSI Library (Please note the unusual time )
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
(via Crispi 7)
Title: "Cumulant hierarchies in kinetic theory — the case of the stochastic Kac model"
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=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Title: "Kinetic Equations in Mathematical Epidemiology"
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
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
"Horizontal Mean Curvature Flow in the Heisenberg Group as Scaling Limit of an Interacting Particle System"
Date: September 29th (Monday) at 14.30 pm.
on site: at the Sala Seminari "blocco zero" (DISIM, UnivAq)
zoom: https://gssi-it.zoom.us/j/87571297606pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1
ID riunione: 875 7129 7606
Passcode: SMAQ2425
Abstract
Abstract
We derive curvature flows in the Heisenberg group by formal asymptotic expansion of a nonlocal mean-field equation under the anisotropic rescaling of the Heisenberg group. This is motivated by the aim of connecting mechanisms at a microscopic (i.e. cellular) level to macroscopic models of image processing through a multi-scale approach. The nonlocal equation, which is very similar to the Ermentrout-Cowan equation used in neurobiology, can be derived from an interacting particle model and its discretized version As sub-Riemannian geometries play an important role in the Citti-Sarti-Petitot model of the visual cortex, this paper provides a mathematical framework for a rigorous upscaling of models for the visual cortex from the cell level via a mean field stage to curvature flows which are used in image processing. We present some numerical results comparing the model to a known exact solution. For different choices of the parameters, the numerical algorithm can be connected to a Bence–Merriman–Osher scheme for surface evolution or a convolutional neural network.
Page updated
Report abuse