Settimana Matematica 2015 - Apertura pre-iscrizioni

Sono aperte le pre-iscrizioni online per la Settimana Matematica 2015, la manifestazione di orientamento rivolta agli studenti degli ultimi anni della scuola secondaria di secondo grado organizzata dal Dipartimento di Matematica di Pisa nell'ambito del Piano Nazionale Lauree Scientifiche. Le pre-iscrizioni obbligatorie termineranno improrogabilmente il 15-01-2015.

Per tutte le informazioni sulla manifestazione cliccare sul seguente link: Settimana Matematica 2015.

Rigidity of real hyperbolic lattices: a "natural" approach

Relatore: 
Alessio Savini

Abstract: Rigidity of lattices in semisimple Lie groups has been widely studied so far. One of the most celebrated theorem is Mostow rigidity, which states the following. Assume n bigger or equal than 3. If two complete hyperbolic n-manifolds of finite volume have isomorphic fundamental groups then they are isometric. Equivalently their fundamental groups are conjugated in the group of isometries of the hyperbolic n-space. There are several ways to prove this theorem.

Data Seminario: 
Monday, April 30, 2018
Aula: 
Sala Seminari (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000 - 18:00
Affiliazione: 
ETH, Zürich - Università di Bologna
Ora Inizio: 
Saturday, January 1, 0000 - 16:30

Introduction to Legendrian 2-bridge knots

Relatore: 
Viktória Földvári

Abstract: On an oriented 3-manifold we can define a contact structure, that is, a completely non-integrable plane field in the tangent bundle of the manifold. Regarding such a structure we consider knots that are everywhere tangent to this plane field. After setting up the basic notions, I am giving an introduction to Legendrian knot theory and briefly present my research topic focusing on two-bridge knots.

Sito web: http://people.dm.unipi.it/babygeometri/

Data Seminario: 
Thursday, April 26, 2018
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000 - 17:00
Affiliazione: 
Elte University, Budapest
Ora Inizio: 
Saturday, January 1, 0000 - 15:45

TBA

Aula: 
Sala Seminari (Dip. Matematica)
Data Seminario: 
Thursday, May 31, 2018
Relatore: 
Giovanni Inchiostro
Affiliazione: 
Brown university
Ora Inizio: 
Saturday, January 1, 0000 - 16:00
Ora Fine: 
Saturday, January 1, 0000 - 17:00

Relative quasimaps and quasimap quantum Lefschetz

Relatore: 
Luca Battistella

Quasimaps provide a compactification of the space of maps from smooth curves to a GIT quotient; Ciocan-Fontanine and Kim used them to prove beautiful wall-crossing formulae, comparing the resulting invariants with ordinary Gromov-Witten ones. In joint work with Navid Nabijou, we introduce the notion of genus zero relative quasimaps to a toric target X with respect to a smooth (but not necessarily toric) hyperplane section Y, extending work of Gathmann to this setting.

Data Seminario: 
Thursday, May 31, 2018
Aula: 
Sala Seminari (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000 - 16:00
Affiliazione: 
Imperial college, London
Ora Inizio: 
Saturday, January 1, 0000 - 15:00

Seminario di Analisi Numerica - Higher Order Spectral Symbols and Eigenvalues Approximation for Toeplitz Matrices

Relatore: 
Giovanni Barbarino (Scuola Normale Superiore, Pisa)

Abstract: In the past few years, Bogoya, Böttcher, Grudsky, and
Maximenko obtained the precise asymptotic expansion for the eigenvalues
of Toeplitz matrices under suitable assumptions on the generating
function. Based on this expansion, it's been proposed and analyzed an
interpolation–extrapolation algorithm for computing the eigenvalues,
which is suited for parallel implementation, and on the basis of several
numerical experiments, it was conjectured by Serra-Capizzano that a
completely analogous expansion also holds for the eigenvalues of

Data Seminario: 
Tuesday, April 24, 2018
Affiliazione: 
Sala Seminari Ovest, Dipartimento di Informatica
Ora Inizio: 
Saturday, January 1, 0000 - 11:00
Ora Fine: 
Saturday, January 1, 0000 - 12:30

Analysis of the experiment defining the dielectric constant

Relatore: 
J. Rauch

The dielectric constant is defined by an experiment with an infinite slab of dielectric between two infinite oppositely charged plates.  This talk describes the surprisingly delicate theorem that the physicists formula for the electrostatic potential of this idealized experiment is the limit, as the size tends to infinity, of finite size experiments.  Joint work with L, Ridgway SCOTT.

Data Seminario: 
Thursday, April 26, 2018
Aula: 
Sala Seminari (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000 - 17:00
Affiliazione: 
Michigan U.
Ora Inizio: 
Saturday, January 1, 0000 - 16:00

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