Monday 9 June 2025, from 2 pm in Room 2109 (2nd Floor) - U5 Building, Leandro de Freitas Pessoa (Federal University of Piauí, Brazil) and Stefan Gille (University of Alberta, Canada) will give the following talks
Speaker: Leandro de Freitas Pessoa
Title: The Mean Exit Time for Submanifolds
Abstract: We will discuss the mean exit time for Brownian motion on a submanifold. We will show that minimal submanifolds with infinite mean exit time cannot be isometrically immersed in cylinders (horocylinders), cones, and wedges of certain product spaces.
Speaker: Stefan Gille
Title: Rost nilpotence and direct sums
Abstract: In the first half of the talk I will explain Rost nilpotence and its applications, and then discuss whether this property holds for a finite direct sum of motives if it holds for all summands. It turns out that this is the case if one assumes a slightly stronger version of Rost nilpotence which -- as I will explain -- actually holds for all cases where the 'original' form of Rost nilpotence has been verified.
All interested are invited to participate
For more information, visit the website