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<DIV><FONT color=#000080><FONT face=Arial color=#000000 size=2>Nei prossimi
giorni alla Scuola Normale si terranno i seguenti seminari di Matematica:</FONT>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Giovedì 3 aprile 2003, alle ore 15:00, in aula
Mancini - Colloquio de Giorgi</FONT></DIV>
<DIV><FONT size=+0><FONT size=2><FONT face=Arial>Prof. <STRONG>Albert Fathi
-</STRONG> ENS Lyon -</FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>"C^1 subsolutions of Hamilton-Jacobi
Equation''<BR><FONT size=+0>Abstract:</FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><FONT size=+0>We will explain the role of C^1
subsolutions of the Hamilton-Jacobi<BR>Equation in Lagrangian dynamics
(Aubry-Mather theory) and in the Lions-Crandall theory of viscosity solutions.
In a joint work with Antonio Siconolfi (La Sapienza, Roma), we have been
able to obtain such ``critical subsolutions''. We will not assume any
familiarity with either Lagrangian Dynamics or Viscosity Solutions, however, a
knowledge of the basic elements of the Calculus of variations up to Tonelli's
existence of minimizing curves will help.</FONT><BR></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>Giovedì 3 aprile 2003, alle ore 15:00, sala
Riunioni del Collegio Puteano</DIV></FONT></FONT>
<DIV><FONT size=+0><FONT face=Arial size=2>Dott.</FONT><FONT face=Arial
size=2><STRONG> A. D'Andrea -</STRONG> Università di Roma La Sapienza<BR>"La
classificazione di Cartan delle algebre di campi vettori"</FONT></FONT></DIV>
<DIV><FONT size=+0><FONT face=Arial size=2></FONT></FONT> </DIV>
<DIV><FONT size=+0><FONT face=Arial size=2>Venerdì 4 aprile 2003, alle ore
15:00, aula Collegio Fermi</FONT></FONT></DIV>
<DIV><FONT size=+0><FONT face=Arial size=2>Dott.</FONT><FONT size=2><FONT
face=Arial><STRONG> A. D'Andrea -</STRONG> Università di Roma La
Sapienza<BR>"Pseudoalgebre di Lie ed algebre di Lie di dimensione
infinita"</FONT></FONT></FONT></DIV></FONT></DIV>
<DIV><FONT
color=#000080>************************************************<BR>-Segreteria
Didattica-<BR>Giulia Curciarello<BR>Tel. 050-2213219</FONT></DIV>
<DIV> </DIV>
<DIV><FONT color=#000080><A
href="mailto:curciare@dm.unipi.it">curciare@dm.unipi.it</A><BR>*************************************************</FONT></DIV></BODY></HTML>