Tue, 23 Jun 2015

15:30 - 16:30
L1

Analytic and Arithmetic Geometry Workshop: Quasi-abelian categories in analytic geometry

Federico Bambozzi
(University of Regensburg)
Abstract

I will describe a categorical approach to analytic geometry using the theory of quasi-abelian closed symmetric monoidal categories which works both for Archimedean and non-Archimdedean base fields. In particular I will show how the weak G-topologies of (dagger) affinoid subdomains can be characterized by homological method. I will end by briefly saying how to generalize these results for characterizing open embeddings of Stein spaces. This project is a collaboration with Oren Ben-Bassat and Kobi Kremnizer.

Wed, 07 Aug 2013

12:00 - 13:00
Gibson Grd floor SR

An Initial-Boundary Value Problem for the Fully-Coupled Navier-Stokes/Q-Tensor System

Yuning Liu
(University of Regensburg)
Abstract

We will present in this lecture the global existence of weak solutions and the local existence and uniqueness of strong-in-time solutions for the fully-coupled Navier-Stokes/Q-tensor system on a bounded domain $\O\subset\mathbb{R}^d$ ($d=2,3$) with inhomogenerous Dirichlet and Neumann or mixed boundary conditions. Our result is valid for any physical parameter $\xi$ and we consider the Navier-Stokes equations with a general (but smooth) viscosity coefficient.

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