Previous Conferences & Workshops

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...

Nov
12
2018

Symplectic Dynamics/Geometry Seminar

Distinguishing fillings via dynamics of Fukaya categories
Yusuf Barış Kartal
3:30pm|Simonyi Hall 101

Given a Weinstein domain $M$ and a compactly supported, exact symplectomorphism $\phi$, one can construct the open symplectic mapping torus $T_\phi$. Its contact boundary is independent of $\phi$ and thus $T_\phi$ gives a Weinstein filling of $T_0...

Nov
12
2018

Members’ Seminar

Invertible objects in stable homotopy theory
2:00pm|Simonyi Hall 101

Computation of the stable homotopy groups of spheres is a long-standing open problem in algebraic topology. I will describe how chromatic homotopy theory uses localization of categories, analogous to localization for rings and modules, to split this...