Dipartimento di Matematica

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Prossimi Eventi

apr 21 mer 2021

Seminar
Ahmed Sebbar, Vieta Formula, Distributions, and Lemniscate, 21-04-2021, ore 17:00
- Seminar
- Ahmed Sebbar
- Chapman University
- Vieta Formula, Distributions, and Lemniscate
- Mercoledì 21 aprile 2021 alle ore 17:00
- On line
- Abstract
  
  We give two extensions of the classical Vieta (or Viète) formula.
  The first extension leads to the classical Fabius function, an infinitely differentiable function that is nowhere analytic. The second extension discusses the corresponding formula for
  the elliptic curves with complex multiplication $y^2=x^3 -Dx$, $y^2=x^3-D$.
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568
mag 03 lun 2021

Seminar
Ernesto De Vito, Machine Learning as an inverse problem, 03-05-2021, ore 16:00
- Seminar
- Ernesto De Vito
- Università di Genova
- Machine Learning as an inverse problem
- Lunedì 3 maggio 2021 alle ore 16:00
- On line
- Abstract
  
  The talk is devoted to a mathematical introduction to Machine Learning
  from the point of view of inverse problems. In the presentation, we focus on
  supervised learning problems in the framework of kernel methods.
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 04 mar 2021

mag 05 mer 2021

Convegno
Meeting on tomography and applications discrete tomography, neuroscience and image reconstruction 15th edition
04/05/2021 - 05/05/2021

CONVEGNO
TAIR
Meeting on tomography and applications discrete tomography, neuroscience and image reconstruction 15th edition
organizzatori
Paolo Dulio - Politecnico Milano, Paolo Finotelli - Politecnico Milano, Andrea Frosini - Universita' Firenze, Silvia Pagani - Universita' Cattolica, Carla Peri - Universita' Cattolica, Lama Tarsissi - Sorbonne University Abu Dhabi
The aim of the Meeting is to share interdisciplinary aspects between the experimental research concerning X-ray tomography and the mathematical image reconstruction community.
Martedì 4 maggio 2021 - Mercoledì 5 maggio 2021
Piattaforma Zoom

Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 05 mer 2021

Seminar
Marco Bramanti, La delta di Dirac: storia di un mostro, 05-05-2021, ore 12:15
- Seminar
- Marco Bramanti
- Politecnico di Milano
- La delta di Dirac: storia di un mostro
- Mercoledì 5 maggio 2021 alle ore 12:15
- online: tiny.cc/fdsCM2021
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 10 lun 2021

Seminar
Gigliola Staffilani, The Schrödinger equation as inspiration of beautiful mathematics, 10-05-2021, ore 16:00

Seminar
Gigliola Staffilani
MIT Mathematics, Cambridge, MA, US
The Schrödinger equation as inspiration of beautiful mathematics
Lunedì 10 maggio 2021 alle ore 16:00
online
Abstract

In the last two decades great progress has been made in the study of dispersive and wave equations. Over the years the toolbox used in order to attack highly nontrivial problems related to these equations has developed to include a collection of techniques: Fourier and harmonic analysis, analytic number theory, math physics, dynamical systems, probability and symplectic geometry. In this talk I will introduce a variety of results using as model problem mainly the periodic 2D cubic nonlinear Schrodinger equation. I will start by giving
a physical derivation of the equation from a quantum many-particles
system, I will introduce periodic Strichartz estimates along with some remarkable connections to analytic number theory, I will move on the concept of energy transfer and its connection to dynamical systems, and I will end with some results on the derivation of a wave kinetic equation.
Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 10 lun 2021

Seminar
Leszek Demkowicz, The DPG Method for Convection-Reaction Problems, 10-05-2021, ore 17:00
- Seminar
- Leszek Demkowicz
- Oden Institute, The University of Texas at Austin
- The DPG Method for Convection-Reaction Problems
- Lunedì 10 maggio 2021 alle ore 17:00
- On line
- Abstract
  
  We present a progress report on the development of Discontinuous
  Petrov-Galerkin methods for the convection-reaction problem in
  context of time-stepping and space-time discretizations of Boltzmann
  equations [1].
  The work includes a complete analysis for both conforming (DPGc)
  and non-nonconforming (DPGd) versions of the DPG method employing
  either globally continuous or discontinuous piece-wise polynomials to
  discretize the traces.
  The results include construction of a local Fortin operator for
  the case of constant convection and a global discrete stability
  analysis for both DPGc and DPGd methods.
  The theoretical findings are illustrated with numerous numerical
  experiments in two space dimensions.
  
  This is a joint work with Nathan Roberts from Sandia National Laboratories.
  
  [1] L. Demkowicz, N. Roberts, ``The DPG Method for the
  Convection–Reaction Problem Revisited'', submitted.
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 12 mer 2021

Seminar
Fabio Peri, ''L'amor che move il sole e l'altre stelle''. Il cielo nella Divina Commedia, 12-05-2021, ore 12:15

Seminar
Fabio Peri
Civico Planetario U. Hoepli di Milano
''L'amor che move il sole e l'altre stelle''. Il cielo nella Divina Commedia
Mercoledì 12 maggio 2021 alle ore 12:15
online: tiny.cc/fdsCM2021
Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

mag 19 mer 2021

Seminar
Stefano Capolongo, Design and Health, 19-05-2021, ore 12:15
- Seminar
- Stefano Capolongo
- Politecnico di Milano
- Design and Health
- Mercoledì 19 maggio 2021 alle ore 12:15
- online: tiny.cc/fdsCM2021
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568
mag 19 mer 2021

Seminar
Roman Lavicka, Fischer decomposition for massless field equations, 19-05-2021, ore 17:00
- Seminar
- Roman Lavicka
- Charles University Prague
- Fischer decomposition for massless field equations
- Mercoledì 19 maggio 2021 alle ore 17:00
- On line
- Abstract
  
  Massless field equations are fundamental in particle physics. In Clifford analysis, a version of these equations in Euclidean space of dimension 4 have been studied. In this talk, we shall discuss a recent development on this topic. In particular, for fields with values in a general irreducible spin module, as an analogue of massless field equations we propose the so-called generalized Cauchy-Riemann equations introduced by E. Stein and G. Weiss. Then we describe Fischer decompositions of massless fields up to spin 3/2. This is a joint work with V. Soucek, W. Wang, F. Brackx and H. De Schepper.
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568
mag 26 mer 2021

Seminar
Giuseppe Toscani, Meccanica statistica e fenomeni sociali, 26-05-2021, ore 12:15
- Seminar
- Giuseppe Toscani
- Università di Pavia
- Meccanica statistica e fenomeni sociali
- Mercoledì 26 maggio 2021 alle ore 12:15
- online: tiny.cc/fdsCM2021
- Politecnico di Milano, Dipartimento di Matematica edificio 14, via Giuseppe Ponzio 31/P, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568