Previous Conferences & Workshops

Feb
27
2019

Mathematical Conversations

Hodge theory: matrices and differential equations
6:00pm|Dilworth Room

Solutions to some differential equations are related to geometric structures on the underlying manifold. For instance certain hypergeometric equations are related to the uniformization of Riemann surfaces. I will start by recalling some classical...

Feb
27
2019

Symplectic Dynamics Working Group

Diffusion Process in the Three-Body Problem
1:30pm|Simonyi Hall Classroom 114

We consider the elliptic restricted three-body problem as a perturbation of the circular problem, with the perturbation parameter being the eccentricity of the orbits of the primaries. We show that for every suitably small, non-zero perturbation...

Feb
27
2019

Emerging Topics on Scalar Curvature and Convergence

Techniques for Proving Intrinsic Flat Limits are not the Zero Space
10:00am|Simonyi Hall 112

Last Fall the Emerging Topics on Scalar Curvature and Convergence groupdiscussed and devised a number of conjectures concerning the intrinsic flat limits of sequences of manifolds with lower bounds on their scalar curvature. Many of thesewere almost...

Feb
26
2019

Variational Methods in Geometry Seminar

Ancient gradient flows of elliptic functionals
Christos Mantoulidis
3:30pm|Simonyi Hall 101

We study closed ancient solutions to gradient flows of elliptic functionals in Riemannian manifolds, including the mean curvature flow. As an application, we show that an ancient (arbitrarycodimension) mean curvature flow in $S^n$ with low area must...

Feb
26
2019

Variational Methods in Geometry Seminar

Geodesic nets: examples and open problems.
1:00pm|Simonyi Hall 101

Geodesic nets on Riemannian manifolds is a natural generalization of geodesics. Yet almost nothing is known about their classification or general properties even when the ambient Riemannian manifold is the Euclidean plane or the round 2-sphere.

In...

Feb
25
2019

Joint IAS/Princeton University Algebraic Geometry Seminar

Vertex algebras and moduli of curves
Nicola Tarasca
5:00pm|Simonyi Hall 101

This talk will focus on geometric realizations of vertex algebras. The Virasoro uniformization provides an incarnation of the Virasoro algebra in the tangent space of the Hodge line bundle on moduli of curves with marked points and local coordinates...

Feb
25
2019

Symplectic Dynamics/Geometry Seminar

Higher symplectic capacities
Kyler Siegel
3:30pm|Simonyi Hall 101

I will describe a new family of symplectic capacities defined using rational symplectic field theory. These capacities are defined in every dimension and give state of the art obstructions for various "stabilized" symplectic embedding problems such...