# Gravity in three dimensions: physical foundations

## GAP Seminar

## Meeting Details

For more information about this meeting, contact Nigel Higson, Mathieu Stiénon, Ping Xu.

**Speaker:** Marc Geiller, Penn State

**Abstract:** The year 2015 marks the centennial anniversary of the birth of Einstein's theory of general relativity, which is so far the most successful and experimentally tested description of the gravitational interaction. Although the physical spacetime around us is four-dimensional, general relativity, because of its geometrical nature, can also be formulated in three spacetime dimensions. There it exhibits special mathematical structure, and can be studied in exactly soluble ways. The goal of this series of lectures is to present some aspects of the rich interplay that exists between mathematics and physics within the context of three-dimensional gravity.
Part 1: Physical foundations
Part 2: Mathematical formulations
Part 3: Quantization via loop groups
Part 4: Path integral quantization and topological invariants

## Room Reservation Information

**Room Number:** 106 McAllister

**Date:** 03/24/2015

**Time:** 2:30pm - 3:30pm