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SUMMARY:Cinzia Casagrande (Università di Torino)
DTSTART:20231107T160000Z
DTEND:20231107T170000Z
DTSTAMP:20260423T022743Z
UID:Geolis/130
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/130/"
 >Fano $4$-folds with large Picard number are products of surfaces</a>\nby 
 Cinzia Casagrande (Università di Torino) as part of Geometria em Lisboa (
 IST)\n\n\nAbstract\nLet $X$ be a smooth\, complex Fano $4$-fold\, and $\\r
 ho(X)$ its Picard number. We will discuss the following theorem: if $\\rho
 (X)>12$\, then $X$ is a product of del Pezzo surfaces. This implies\, in p
 articular\, that the maximal Picard number of a Fano $4$-fold is $18$. Aft
 er an introduction and a discussion of examples\, we explain some of the i
 deas and techniques involved in the proof.\n
LOCATION:https://researchseminars.org/talk/Geolis/130/
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