Previous Conferences & Workshops

Nov
15
2018

Joint IAS/Princeton University Number Theory Seminar

Hyperfields, Ordered Blueprints, and Moduli Spaces of Matroids
Matt Baker
4:30pm|Fine Hall 214

I will begin with a gentle introduction to hyperrings and hyperfields (originally introduced by Krasner for number-theoretic reasons), and then discuss a far-reaching generalization, Oliver Lorscheid’s theory of ordered blueprints. Two key examples...

Nov
14
2018

Mathematical Conversations

The stability of atoms and the ionization conjecture
6:00pm|Dilworth Room

An atom is made of a positively charged nucleus and negatively charged electrons, interacting with each other via Coulomb forces. In this talk, I will review what is known, from a mathematical perspective, about this paradigmatic model, with a...

Nov
14
2018

Informal Group Action Seminar

Dimension of self-affine measures and additive combinatorics
Mike Hochman
2:00pm|Simonyi Hall 101

The purpose of the talk is to explain how additive combinatorics plays a role in recent work on the dimension of self-affine measures generated by maps satisfying a diophantine condition. Under low-entropy or separation assumptions, this problem is...

Nov
13
2018

Variational Methods in Geometry Seminar

Morse-Theoretic Aspects of the Willmore Energy
Alexis Michelat
3:30pm|Simonyi Hall 101

We will present the project of using the Willmore elastic energy as a quasi-Morse function to explore the topology of immersions of the 2-sphere into Euclidean spaces and explain how this relates to the classical theory of complete minimal surfaces...

Nov
13
2018

Symplectic Dynamics Working Group

Celestial Mechanics and Holomorphic Curves
Umberto Hryniewicz
1:30pm|Simonyi Hall Classroom 114

This is a survey talk. The goal is to describe recent developments in Celestial Mechanics obtained with techniques from Symplectic Dynamics, and discuss open problems. Emphasis will be given to the construction of transverse foliations and their...

Nov
13
2018

Variational Methods in Geometry Seminar

Translators for Mean Curvature Flow
David Hoffman
1:00pm|Simonyi Hall 101

A translator for mean curvature flow is a hypersurface $M$ with the property that translation is a mean curvature flow. That is, if the translation is $t\rightarrow M+t\vec{v}$, then the normal component of the velocity vector $\vec{v}$ is equal to...