Genus 1 curves in twisted projective spaces

Ben Antieau (Northwestern)

15-Jan-2021, 20:00-21:00 (2 years ago)

Abstract: Does every Severi—Brauer variety contain a (possibly singular) genus 1 curve? This basic question was asked by David Saltman and Pete Clark and answered in low dimensions by Johan de Jong and Wei Ho. I will explain something of the history of the problem as well as recent joint work with Asher Auel where we show, with the help of a nice observation of David Saltman, that the answer is `yes’ for twisted forms of $\mathbb{P}^r$ for $r=6$ over global fields.

algebraic geometry

Audience: researchers in the topic

Comments: The discussion for Ben Antieau’s talk is taking place not in zoom-chat, but at (and will be deleted after ~3-7 days).

Stanford algebraic geometry seminar

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Organizer: Ravi Vakil*
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