Previous Conferences & Workshops

Nov
05
2019

Computer Science/Discrete Mathematics Seminar II

Extremal set theory
Andrey Kupavskii
10:30am|Simonyi Hall 101

Extremal set theory typically asks for the largest collection of sets satisfying certain constraints. In the first talk of these series, I'll cover some of the classical results and methods in extremal set theory. In particular, I'll cover the...

Nov
04
2019

Analysis Seminar

The forced mean curvature flow in random media
5:15pm|Simonyi Hall 101

"I will discuss some history and new results about the forced mean curvature flow in inhomogeneous media.  It is a model for interface propagation in quenched randomness in various physical settings, e.g. contact lines, phase interfaces in porous...

Nov
04
2019

Symplectic Dynamics/Geometry Seminar

Homological mirror symmetry for a complex genus 2 curve
Catherine Cannizzo
3:30pm|*Princeton University, Fine Hall 224*

We will discuss work from https://arxiv.org/abs/1908.04227 on a homological mirror symmetry result for a complex genus 2 curve. We will first note how the result fits into the broader framework of HMS examples. Then we will describe the geometric...

Nov
04
2019

Members’ Seminar

Pseudoholomorphic curves with boundary: Can you count them? Can you really?
2:00pm|Simonyi Hall 101

Open Gromov-Witten (OGW) invariants should count pseudoholomorphic maps from curves with boundary to a symplectic manifold, with various constraints on boundary and interior marked points. The presence of boundary poses an obstacle to invariance. In...

Nov
04
2019

Computer Science/Discrete Mathematics Seminar I

Privacy via ill-posedness
11:00am|Simonyi Hall 101

In this work, we exploit the ill-posedness of linear inverse
problems to design algoithms to release differentially private data or
measurements of the physical system. We discuss the spectral
requirements on a matrix such that only a small amount...

Nov
01
2019

Analysis/Mathematical Physics Seminar

Epsilon-regularity for minimal surfaces near quadratic cones
Luca Spolaor
5:00pm|Simonyi Hall 101

Every area-minimizing hypercone having only an isolated singularity fits into a foliation by smooth, area-minimizing hypersurfaces asymptotic to the cone itself. In this talk I will present the following epsilon-regularity result: every minimal...

Nov
01
2019

Analysis/Mathematical Physics Seminar

Local bound on the number of nodal domains
3:30pm|Simonyi Hall 101

Courant's theorem states that the k-th eigenfunction of the Laplace operator on a closed Riemannian manifold has at most k nodal domains. Given a ball of radius r, we will discuss how many of nodal domains can intersect a ball (depending on r and k)...