<div dir="ltr"><p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:22pt;font-family:"Times New Roman",serif">Colloqui della Classe di Scienze<span></span></span></b></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center"><span style="font-size:22pt;font-family:"Times New Roman",serif"><span> </span></span></p>

<pre style="text-align:center;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:16pt;font-family:"Times New Roman",serif">Mercoledì  15 novembre 2017<br>
ore 15:00<span></span></span></pre>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><u><span style="font-size:16pt;font-family:"Times New Roman",serif"><span><span style="text-decoration-line:none"> </span></span></span></u></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><u><span style="font-size:16pt;font-family:"Times New Roman",serif">Scuola Normale Superiore<span></span></span></u></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><span style="font-size:16pt;font-family:"Times New Roman",serif">Pisa<span></span></span></p>

<p class="MsoNormal" align="center" style="margin-left:9pt;text-align:center;line-height:18pt"><span style="font-size:16pt;font-family:"Times New Roman",serif">(Sala Azzurra)<span></span></span></p>

<p class="MsoNormal" align="center" style="text-align:center;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-family:Arial,sans-serif"><br>
</span><b><span style="font-size:22pt;font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Ciro Ciliberto</span></b><b><span style="font-size:22pt;font-family:"Times New Roman",serif"><span></span></span></b></p>

<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-family:"Times New Roman",serif">(<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Università di Roma “Tor Vergata”</span></span>)</i><i><span style="font-family:"Times New Roman",serif"><span></span></span></i></p>

<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span style="font-family:Arial,sans-serif"> </span></i></p>

<p class="MsoNormal"><i><span style="font-family:"Times New Roman",serif"><span> </span></span></i></p>

<p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:16pt;font-family:"Times New Roman",serif">Terrà un
seminario dal titolo:<span></span></span></p>

<p class="MsoNormal"><b><i><span style="font-size:22pt;font-family:"Times New Roman",serif"><span> </span></span></i></b></p>

<p class="MsoNormal" align="center" style="text-align:center"><b><span lang="EN-US" style="font-size:22pt;font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">“</span></b><b><span style="font-size:22pt;font-family:"Times New Roman",serif">Enumeration in geometry</span></b><b><span lang="EN-US" style="font-size:22pt;font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">”</span></b><b><span lang="EN-US" style="font-size:22pt;font-family:"Times New Roman",serif"><span></span></span></b></p>

<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><b><span lang="EN-US" style="font-size:22pt;font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span> </span></span></b></p>

<p class="MsoNormal" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><b><span lang="EN-US" style="font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Abstract:<span></span></span></b></p>

<p class="MsoNormal" style="margin-bottom:5pt;text-align:justify;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="EN-US" style="font-family:"Times New Roman",serif">Enumeration of
geometric objects verifying some specific properties is an old and venerable
subject.  In this talk  I will start by briefly reviewing some of its
history and problems. In the last decades, enumerative geometry saw the
flourishing of new problems and underwent a tremendous change of perspective
and a spectacular progress, with the introduction of extremely refined new
mathematical ideas and tools which launched unexpected bridges between
different parts of mathematics. This has been due also, sometimes mainly, to
the input of questions coming from physics. New insights have also been
provided by discretization methods in algebraic geometry introduced by the
so--called tropical mathematics, which, by the way, has quite interesting
applications in phylogenetics. Being impossible to present all this material in
a one hour talk, I will limit myself to give general information on some
aspects of these topics, the ones which are closer to my own research and
(limited) knowledge</span></i><i><span lang="EN-US" style="font-size:9.5pt;font-family:"Times New Roman",serif">.<span></span></span></i></p>

<p class="MsoNormal" style="text-align:justify;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="EN-US" style="font-family:"Times New Roman",serif"> <span></span></span></i></p>

<p class="MsoNormal" style="margin-bottom:14pt;text-align:justify"><span lang="EN-US" style="font-family:"Times New Roman",serif"><span> </span></span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p><div><div class="gmail_signature"><div dir="ltr"><div>Valeria Giuliani</div><div>Scuola Normale Superiore</div><div>Servizio alla Didattica e Allievi</div><div>tel. 050 509260</div><div>Piazza dei Cavalieri, 7</div><div>56126 Pisa</div><div>E-mail: <a href="mailto:valeria.giuliani@sns.it" target="_blank">valeria.giuliani@sns.it</a></div><div>E-mail: <a href="mailto:classi@sns.it" target="_blank">classi@sns.it</a></div></div></div></div>
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