Previous Conferences & Workshops

Jan
21
2025

Analysis and Mathematical Physics

The 3D Kinetic Couette Flow Via The Boltzmann Equation In The Diffusive Limit
Robert Strain
2:30pm|Simonyi Hall 101 and Remote Access

This talk is about the study of the Boltzmann equation in the diffusive limit in a channel domain $\mathbb{T}^2\times (-1,1)$ nearby the 3D kinetic Couette flow.  We will begin the talk with a substantial introduction for non-experts.  Our result...

Jan
21
2025

Symplectic Geometry Seminar

On Hofer's Geometry of Autonomous Flows on the Two-Sphere
Egor Shelukhin and Renato Vianna
1:00pm|Simonyi 101 and Remote Access

The growth of an autonomous Hamiltonian flow in Hofer's metric is not yet well understood. A result of Polterovich and Rosen shows that generically this growth is asymptotically linear, and in all known cases where it is not, it appears to be...

Jan
21
2025

Computer Science/Discrete Mathematics Seminar II

Explicit Codes Approaching the Generalized Singleton Bound Using Expanders
Shashank Srivastava
10:30am|Simonyi 101 and Remote Access

Error correcting codes are objects designed to withstand errors that may arise during communication. Originally intended for practical use, codes have come to be established as one of the central objects of study in theoretical computer science, due...

Jan
17
2025

IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Kähler Compactification of $\mathbb{C}^n$ and Reeb Dynamics
Zhengyi Zhou
9:15am|Remote Access

We will present two results in complex geometry: (1) A Kähler compactification of $\mathbb{C}^n$ with a smooth divisor complement must be $\mathbb{P}^n$, which confirms a conjecture of Brenton and Morrow under the Kähler assumption; (2) Any complete...

Jan
16
2025

Special Year Seminar II

Topological Bound for Tropical Varieties
Lucia Lopez de Medrano
11:00am|Wolfensohn Hall

The construction by Mikhalkin of a non-planar tropical cubic curve in R^3 of genus 1 marked a significant breakthrough in the study of combinatorial tropical varieties. It was the first known example of a non-realizable tropical variety, with the...

Jan
16
2025

Special Year Seminar II

Beyond the g-conjecture
Alan Stapledon
10:00am|Wolfensohn Hall

The conjecture in combinatorics that has received perhaps the most attention over the last 50 years is McMullen's g-conjecture. It provides a complete characterisation of the number of $i$-dimensional faces in a triangulation of an $(d - 1)$...

Jan
15
2025

Connections to Schubert Calculus Learning Seminar

Three Proofs Of The Reverse Khovanskii-Teissier Inequality
Sergio Cristancho
3:30pm|Simonyi Classroom (S-114)

The reverse Khovanskii-Teissier inequality is a three term inequality for nef divisors which first appeared in the context of Kähler geometry. It provides an upper bound on a product of two divisors in terms of products with the third, hence its...