Analytification and tropicalization of some projective varieties

Time：Thur., 12:00-13:00, Sept. 18, 2025

Venue：BIMSA A4-1

Organizer：Yong Suk Moon, Koji Shimizu

Speaker：Arnaud Plessis

BIMSA-YMSC Number Theory Lunch Seminar

Organizers：

Yong Suk Moon, Koji Shimizu

Speaker：

Arnaud Plessis（BIMSA）

Time：

Thur., 12:00-13:00, Sept. 18, 2025

Venue：

BIMSA A4-1

Title:

Analytification and tropicalization of some projective varieties

Abstract:

Analytification is roughly the process of universally turning a ”bad” algebraic space into a ”nice” analytic space. Tropicalization is roughly the process of transferring algebraic geometry into convex geometry. I will explain these two concepts. Time permitting, I will also explain how to apply the tropical geometry in order to get applications towards Lehmer's problem.

About the speaker:

Arnaud Plessis is an assistant professor at BIMSA from September 2023. His research is mainly focused on diophantine geometry. He obtained his Phd. thesis in 2019 at Université de Caen Normandie. Before joining BIMSA, he has been Attaché Temporaire d'Enseignement et de Recherche (a kind of postdoctoral with course duties) at Université Grenoble Alpes from September 2019 to August 2020. Then, he has been postdoctor at Morningside Center of Mathematics, Chinese Academy of Sciences, from September 2020 to August 2023.

DATESeptember 18, 2025

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