Si trasmette in allegato l'annuncio relativo alla Cattedra Galileiana che avra' inizio lunedi' 12 giugno presso la Scuola Normale.
Chi fosse interessato a partecipare e' pregato di restituire il modulo incluso nel pieghevole all'Associazione Amici per fax al no. 050-509179 oppure di inviare un messaggio di posta elettronica con i dati richiesti a amicisns(a)sns.it .
Le informazioni contenute nella presente e-mail e nei relativi allegati possono essere riservate e sono, comunque, destinate esclusivamente al destinatario in indirizzo.
E' vietata, pertanto, la diffusione, distribuzione e/o copiatura di tali informazioni da parte di qualsiasi soggetto diverso dal destinatario.
Chiunque abbia ricevuto o letto questa e-mail per errore o senza esserne legittimato è invitato a darne immediatamente notizia al mittente tramite fax o e-mail e a distruggerla.
Grazie.
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I seminari inizieranno alle 15 e proseguiranno con il seguente programma
martedi' 13-06-2006 (15:00) - l'Aula Magna del Dipartimento di Matematica "L. Tonelli"
Giandomenico Orlandi :
One day miniworkshop on Variational Problems:Dynamics of Ginzburg-Landau vortices and critical points of the Kirchhoff functional.
Abstract:
For the two dimensional complex parabolic Ginzburg-Landau equation we prove that, asymptotically, vortices evolve according to a simple ordinary differential equation, which is a gradient flow of the
Kirchhoff-Onsager functional. This convergence holds except for a finite number of times, corresponding to vortex collisions and splittings, which
we describe carefully. The only assumption is a natural energy bound on the initial data.
martedi' 13-06-2006 (16:00) - l'Aula Magna del Dipartimento
Cyrill Muratov :
"One day miniworkshop on Variational Problems". A Variational Approach to Front Propagation in Infinite Cylinders.
Abstract:
Gradient reaction-diffusion-advection systems arise in the context of modeling the kinetics of phase transitions, population dynamics and combustion. These systems are known to exhibit a variety of non-trivial spatio-temporal behaviors, most notably the
phenomenon of propagation and traveling waves. We introduce a variational formulation for the traveling wave solutions in cylindrical geometries with transverse potential flow, which allows us to
construct a certain class of traveling wave solutions and establish their monotonicity, asymptotic decay and, under some extra assumptions, uniqueness. These solutions are special in a sense that they are
characterized by a non-generic fast exponential decay ahead of the wave and play an important role in propagation phenomena for the initial value problem. We also construct an area-type functional
that gives a matching upper and lower bound for the propagation speed in the sharp reaction zone limit for weakly curved fronts.
ore 17.00 coffe-break
martedi' 13-06-2006 (17:30) - l'Aula Magna del Dipartimento "L. Tonelli"
Dorin Bucur :
"One day miniworkshop on Variational Problems". Shape analysis of the crack inverse problem
Abstract:
The talk deals with the identifiability of non-smooth defects by boundary measurements, and the stability of their detection. We extend
the result of Alessandrini and Valenzuela on the unique determination of a finite number of cracks or cavities by two boundary measurements, to
arbitrary closed sets satisfying quasi-everywhere a {\it conductivity assumption}. This new regularity concept is to be compared to the Wiener
criterion, rather than to the usual smoothness of the boundary. Relying on the geometric stability of the direct problem, we discuss the stability of the inverse problem without imposing any a priori
boundary regularity of the unknown defects. As an application, we give a rigorous justification of the finite elements approximation of the
defects.
*****************************************************************
lunedi' 19-06-2006 (11:00) - Sala riunioni
Irinel Dragan (Dept. of Mathematics, Univ.of Texas at Arlington, USA) :
seminari congiunti col DIPART.MATEMATICA APPLICATA: On the Semivalues and the Shapley value for cooperative transferable utility games
*******************************************************************
mercoledi' 21-06-2006 (15:00) - Sala dei Seminari
Jesus Ruiz (Universitad Complutense Madrid) :
Open questions concernings Hilbert's 17th Problem for analytic curves
Abstract
The Hilbert 17th Problem asks when a psd function is a sum of squares, and of how many.
For real analytic curves this reduces to the local problem
for germs at singular points. For those germs, the problem splits into the
consideration of their irreducible branches.
Now, irreducible curve germs are classically discussed
using the semigroup of values: all irreducible curves with fixed semigroup
form a "moduli" algebraic set in some finite dimensional affine space.
There, Pythagoras numbers, positive semidefinite germs, sum of squares
provide semialgebraic mappings on and stratifications of the "moduli" set.
The understanding od these semialgebraic data is a difficult matter that
has surprising connections with classical concepts (for instance, Arf
curves and Pythagorean curves are one and the same thing).
*******************************
*************************
Segreteria Didattica
Giulia Curciarello
tel- 050 2213219
*************************
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AVVISO DI SEMINARIO
---------------------------------------------------------------
Nei giorni 14 e 15 giugno il Prof. Igor Konnov (Kazan University) terrà
2 seminari nella Sala Seminari del Dipartimento di Matematica Applicata
"U. Dini" - Università di Pisa, via Bonanno 25/b, Pisa.
14 giugno ore 10:
Combined Relaxation Methods for Variational Inequalities with Single-valued Mappings
ABSTRACT: Variational inequalities proved to be a very useful and powerful tool for investigation and solution of many equilibrium type problems in Economics, Engineering,Operations Research and Mathematical Physics. The talk is devoted to a new general approach to constructing solution methods for variational inequalities, which was called the combined relaxation (CR) approach. This approach is based on combining, modifying and generalizing ideas contained in various relaxation methods.
We describe the methods for variational inequality problems with single-valued mappings.
15 giugno ore 10:
Combined Relaxation Methods for Variational Inequalities with Multi-valued Mappings
ABSTRACT: We intend to to describe combined relaxation (CR) methods for variational inequality problems with multi-valued mappings. The basic principles of the CR approach claim that an iteration of most descent methods can serve as a basis for the auxiliary procedure with a regular rule of determining a separating hyperplane and that
there are a number of rules for choosing the parameters of both the levels. Following these principles, we now indicate ways of creating various classes of CR methods. We begin our considerations from the mixed variational inequalities which constitute a significant subclass of these problems.
------------------------------------------------------------------
Mauro Passacantando
Department of Applied Mathematics
Antonella Giacomelli
Dipartimento di Matematica Applicata "U.Dini"
Via Bonanno Pisano 25 B
56126 - Pisa
Tel.: 050 2219452
Fax: 050 2219450
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Conferenza di
MATEMATICA
Giovedì 8 giugno 2006
ore 15.00
Scuola Normale Superiore
Pisa
(Aula Fermi)
Aroldo Kaplan
Università Nazionale di Cordoba (Argentina)
Terrà una conferenza dal titolo:
"The Hodge Conjecture"
Abstract
An introduction to this celebrated problem, in the language of Calculus on Manifolds suited for a general audience.
Tutti gli interessati sono invitati a partecipare.
La Segreteria della
Classe di Scienze
- - - - -
Michele Verde
Scuola Normale Superiore
Segreteria Classe di Scienze
Tel. 050-509048
Fax. 050-509045
Piazza Dei Cavalieri, 7
56126 Pisa
E-Mail: m.verde(a)sns.it
E-Mail: segreteria.scienze(a)sns.it
- - - - -
Le informazioni contenute nella presente e-mail e nei relativi allegati possono essere riservate e sono, comunque, destinate esclusivamente al destinatario in indirizzo.
E' vietata, pertanto, la diffusione, distribuzione e/o copiatura di tali informazioni da parte di qualsiasi soggetto diverso dal destinatario.
Chiunque abbia ricevuto o letto questa e-mail per errore o senza esserne legittimato è invitato a darne immediatamente notizia al mittente tramite fax o e-mail e a distruggerla.
Grazie.
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> CENTRO DI RICERCA MATEMATICA ENNIO DE GIORGI
>
> Nell'ambito del semestre su "Stochastic Analysis, Stochastic PDE and
> Applications to Fluid Dynamics and Particle Systems", il Prof. ARNAUD
> DEBUSSCHE (IRMAR and ENS de Cachan) terra' un corso dal titolo:
>
> "Introduction to dispersive SPEs"
>
> ABSTRACT:
> In these series of lectures, I will describe mathematical aspects of
> stochastic dispersive PDEs with a particular emphasis on the Nonlinear
> Schrodinger Equations (NLS).
> I will start from the very beginning and explain how the Strichartz
> estimates allow to solve these equations in the simple case of the
> stochastic NLS equation with an additive noise. These tools will then be
> used to study the multiplicative noise case.
> Once basic well-posedness results are established, we will explain some
> aspects on the qualitative influence of a noise on blow-up phenomena in
> the case of a critical or supercritical nonlinearity and show that a
> spatially smooth noise has a strong effect.
> Then, we will prove large deviation estimates and show how these can be
> used to estimate the probability errors in soliton transmission in
> optical fibers.
> Some qualitative aspects being difficult to study theoretically,
> numerical simulations are sometimes used and it is important to study
> the schemes. I will therefore devote some lectures to the numerical
> analysis of the stochastic NLS equations and explain how the associated
> infinite dimensional Kolmogorov equation is used to study the weak order
> of a scheme.
> Finally, depending on the time spent on the preceding topics, I will
> adress some problems related to the Korteweg-de Vries equation and the
> associated solitons when a noise perturbs the dynamics.
>
> CALENDARIO:
> Lunedi' 12 Giugno, 14-30-16-30
> Lunedi' 19 Giugno, 14-30-16-30
> Venerdi' 23 Giugno, 14-30-16-30
> Lunedi' 26 Giugno, 14-30-16-30
> Venerdi' 30 Giugno, 14-30-16-30
> Lunedi' 3 Luglio, 10.30-12.30
> Venerdi' 7 Luglio, 10.30-12.30
> Lunedi' 10 Luglio, 10.30-12.30
> Lunedi' 17 Luglio, 10.30-12.30
> Venerdi' 21 Luglio,, 10.30-12.30
>
> Le lezioni si terranno nella Sala Conferenze del Collegio Puteano
> (Piazza dei Cavalieri 3, PISA).
>
> Tutti gli interessati sono invitati a partecipare.
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University Degree
OBTAIN A PROSPEROUS FUTURE, MONEY-EARNING POWER, AND THE PRESTIGE THAT COMES WITH HAVING THE CAREER POSITION YOUVE ALWAYS DREAMED OF. DIPLOMA FROM PRESTIGIOUS NON-ACCREDITED UNVERSITIES BASED ON YOUR PRESENT KNOWLEDGE AND PROFESSIONAL EXPERIENCE.
If you qualify, no required tests, classes, books or examinations.
Confidentiality Assured
1-520-844-1041
24 hours a day, 7 days a week including Sundays and Holidays
Call us and leave message
offer ending soon..
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Si trasmette in allegato l'annuncio relativo alla Cattedra Galileiana che avra' inizio lunedi' 12 giugno presso la Scuola Normale.
Chi fosse interessato a partecipare e' pregato di restituire il modulo incluso nel pieghevole all'Associazione Amici per fax al no. 050-509179 oppure di inviare un messaggio di posta elettronica con i dati richiesti a amicisns(a)sns.it .
Cordiali saluti,
Caterina D'Elia
_____________________
Caterina D'Elia
Scuola Normale Superiore
Classe di Scienze
Responsabile
Segreteria scientifica e amministrativa
Piazza dei Cavalieri 7
56100 PISA
Tel. ++39--050.509203
Fax ++39-050-509045
Le informazioni contenute nella presente e-mail e nei relativi allegati possono essere riservate e sono, comunque, destinate esclusivamente al destinatario in indirizzo.
E' vietata, pertanto, la diffusione, distribuzione e/o copiatura di tali informazioni da parte di qualsiasi soggetto diverso dal destinatario.
Chiunque abbia ricevuto o letto questa e-mail per errore o senza esserne legittimato è invitato a darne immediatamente notizia al mittente tramite fax o e-mail e a distruggerla.
Grazie.
_______________________________________________
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> Si tratta dei seminari di Sinai
> alla normale la settimana prossima
> info: http://amicisns.sns.it/annuncio_cattedra.htm
>
##########################################################################
> SCUOLA NORMALE SUPERIORE ASSOCIAZIONE AMICI DELLA SCUOLA NORMALE SUPERIORE
>
> CATTEDRA GALILEIANA 2006
>
> Yakov G. Sinai
>
> University of Princeton
>
> A Course on:
>
> Selected Problems from Fluid Dynamics
>
> Lectures will be given at the Scuola Normale Superiore di Pisa, Aula
> Ulisse Dini (Palazzo del Castelletto), according to the following
> schedule:
>
>
> Monday, June 12th 11.00 12.30
> Tuesday, June 13th 11.00 12.30
> Wednesday, June 14th 11.00 12.30
> Thursday, June 15th 11.00 12.30
> Friday, June 16th 11.00 12.30
> Monday, June 19th 11.00 12.30
> Tuesday, June 20th 11.00 12.30
>
>
> Participation is open. Please send your Registration form to:
> Associazione Amici della Scuola Normale Superiore,
> Scuola Normale Superiore,
> Piazza dei Cavalieri 7
> 56126 Pisa.
>
> For information please contact:
> tel. 050509654 ? fax: 050509179
> ##########################################################################
>
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lunedi' 19-06-2006 (11:00) - Sala riunioni
Irinel Dragan (Dept. of Mathematics, Univ.of Texas at Arlington, USA) :
seminari congiunti col DIPART.MATEMATICA APPLICATA:
On the Semivalues and the Shapley value for cooperative transferable utility games
***************************************************
mercoledi' 28-06-2006 (11:00) - Sala delle riunioni
X.Q.Yang (Dept.of Applied Mathematics, Polythecnic University of Hong Kong.) :
seminari congiunti col DIPART.MATEMATICA APPLICATA:
Characterizing the Nonemptiness and Compactness of the Solution Set of a Vector Variational Inequality and Applications
*************************
Segreteria Didattica
Giulia Curciarello
tel- 050 2213219
*************************
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COLLOQUIO DE GIORGI
Lucien SZPIRO
Graduate Center CUNY NewYork
"Algebraic Dynamics"
Abstract
Preperiodic points over number fields and function fields, Equidistribution of small points, Critical bad reduction and a Shafarevich-Faltings finitness theorem for dynamics on the projective line.
Mercoledì 21 giugno 2006
ore 17.00
Aula Mancini
Piazza dei Cavalieri,7
PISA
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