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DTSTART;TZID=Europe/Berlin:20210706T150000
DTEND;TZID=Europe/Berlin:20210706T160000
DTSTAMP:20260601T115511
CREATED:20210915T010114Z
LAST-MODIFIED:20210917T164925Z
UID:1371-1625583600-1625587200@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:Lennart Gehrmann (University of Duisburg-Essen) \nRigid meromorphic cocycles for orthogonal groups \nAbstract: I will talk about a generalization of Darmon and Vonk’s notion of rigid meromorphic cocycles to the setting of orthogonal groups. After giving an overview over the general setting I will discuss the case of orthogonal groups attached to quadratic spaces of signature (3\,1) in more detail. This is joint work with Henri Darmon and Mike Lipnowski.
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-lennart-gehrmann/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
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DTSTART;TZID=Europe/Berlin:20210714T160000
DTEND;TZID=Europe/Berlin:20210714T170000
DTSTAMP:20260601T115511
CREATED:20210915T001958Z
LAST-MODIFIED:20210917T165407Z
UID:1354-1626278400-1626282000@crc326gaus.de
SUMMARY:Fabio Bernasconi
DESCRIPTION:GAUS-Seminar talk by Fabio Bernasconi (University of Utah) \nLog liftability for del Pezzo surfaces and applications to singularities in positive characteristic \nAbstract: In a recent work with Arvidsson and Lacini\, we proved a liftability result to characteristic zero for singular del Pezzo surfaces over perfect fields of characteristic $p>5$. I will explain exactly what notion of liftability we use for singular surfaces (and pairs)\, and I will sketch some parts of the proof.\nFrom this\, I will explain the importance of this result for positive characteristic birational geometry: we prove a Kawamata-Viehweg vanishing theorem for such surfaces that I successively used\, in a work with Kollár\, to deduce properties of singularities of klt threefolds and new liftability results for threefolds Mori fibre spaces in positive characteristic. \nZoom details: \nhttps://uni-frankfurt.zoom.us/j/95464396687?pwd=eno5NGpQdHBmVFlaT1pBU0xlcG15Zz09 \nMeeting ID: 954 6439 6687\nPasscode: 813167
URL:https://crc326gaus.de/event/gaus-seminar-fabio-bernasconi/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
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