| Sunday 5 May 2024 | |
| Events for day: Wednesday 24 November 2021 |
| 15:30 - 17:30 Mathematical Logic Weekly Seminar Semantics of Boolean-valued Models and their Connection and Application to the Standard Model of Set Theory School MATHEMATICS This talk has two parts. In the first part, we will explore some basic aspects of the semantics in Boolean-valued models using tools developed in conditional set theory. The focus will be on Boolean-valued models built from measure algebras. We will describe some basic definitions and theorems in the naive set theory, topology, measure theory, and functional analysis in such models and show with a few examples how such Boolean-valued theorems can be proved from first things and by hand using Boolean reasoning and the exhaustion principle (and without employing a transfer principle). In the second part of the talk, we will interpret some of ... 16:30 - 18:30 Commutative Algebra Webinar Smooth Hilbert Schemes School MATHEMATICS How can we understand all saturated homogeneous ideals in a poly- nomial ring? Hilbert schemes give a geometric answer to this question. After surveying some key features of these natural parameter spaces, we present a complete classification of the smooth Hilbert schemes. Time permitting, we will also reinterpret the smooth Hilbert schemes as suitable generalizations of partial ag varieties. This talk is based on joint work with Roy Skjelnes (KTH). https://zoom.us/join Meeting ID: 875 4619 4914 Passcode: 474975 ... |