Patching and Local-Global Principles

Members Seminar
Topic:Patching and Local-Global Principles
Speaker:Julia Hartmann
Affiliation:RWTH Aachen University; Member, School of Mathematics
Date:Monday, November 5
Time/Room:2:00pm - 3:00pm/S-101

Patching methods are usually used to construct global objects from more local ones. On the other hand, algebraic objects can sometimes be understood from their local behavior, i.e., they satisfy a local-global principle. In this talk, we explain a patching setup and how it leads to local-global principles for certain linear algebraic groups. As a motivation and guiding example we consider quadratic forms.