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SUMMARY:Constantin Shramov (Steklov Mathematical Institute\, NRU HSE)
DTSTART:20220628T102000Z
DTEND:20220628T112000Z
DTSTAMP:20260423T024806Z
UID:Sputnik22/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Sputnik22/7/
 ">Conic bundles</a>\nby Constantin Shramov (Steklov Mathematical Institute
 \, NRU HSE) as part of Conference on Algebraic Geometry\n\n\nAbstract\nCon
 sider a conic bundle over a smooth incomplete curve $C$\, i.e. a smooth su
 rface $S$ with a proper surjective morphism to $C$ such that the push-forw
 ard of the structure sheaf of $S$ coincides with the structure sheaf of $C
 $\, and the anticanonical class of $S$ is\nample over $C$. I will tell abo
 ut a necessary and sufficient condition for the existence of an extension 
 of this conic bundle to the completion of $C$. The talk is based on a join
 t work in progress with V. Vologodsky.\n
LOCATION:https://researchseminars.org/talk/Sputnik22/7/
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