Current
The seminar is held on Tuesdays from 10 to 11 and is organized by Fredrik Johansson and Aurel Page. When on site, it takes place in room 2 at IMB. To get announcements, you can subscribe to the lfant-seminar mailing list.- 2022-01-2510:00OnlineCéline Maistret (University of Bristol)TBA
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- 2022-02-0810:00OnlineElisa Lorenzo Garcia (Université de Neuchâtel)Reduction type of hyperelliptic curves in terms of the valuations of their invariants.
In this talk we will first review the classical criteria to determine the (stable) reduction type of elliptic curves (Tate) and of genus 2 curves (Liu) in terms of the valuations of some particular combinations of their invariants. We will also revisit the theory of cluster pictures to determine the reduction type of hyperelliptic curves (Dokchitser’s et al.). Via Mumford theta constants and Takase and Tomae’s formulas we will be able to read the cluster picture information by looking at the valuations of some (à la Tsuyumine) invariants in the genus 3 case. We will also discuss the possible generalization of this strategy for any genus and some related open questions.
- 2022-03-0810:00OnlineElena Berardini (Télécom Paris)TBA
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- 2022-03-1510:00Salle 2Pierrick Dartois (Corps des mines, Rennes 1)TBA
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