Previous Conferences & Workshops

Mar
20
2023

Joint IAS/Princeton University Symplectic Geometry Seminar

Dynamics of Seifert Surfaces of Torus Knots Via ECH
Morgan Weiler
4:00pm|Simonyi 101 and Remote Access

Embedded contact homology (ECH) is a diffeomorphism invariant of three-manifolds due to Hutchings, defined using a contact form. This very diffeomorphism invariance makes it quite useful when studying contact dynamics, because it is possible to...

Mar
20
2023

Members' Colloquium

Recent Results on Finite Group Lattice Gauge Theories
2:00pm|Simonyi Hall 101 and Remote Access - see Zoom link below

The rigorous study of spin systems such as the Ising model is currently one of the most active research areas in probability theory. In this talk, I will introduce one particular class of such models, known as lattice gauge theories (LGTs), and go...

Mar
20
2023

Computer Science/Discrete Mathematics Seminar I

Extremal Problems for Uniformly Dense Hypergraphs
Mathias Schacht
11:15am|Simonyi 101 and Remote Access

Extremal combinatorics is a central research area in discrete mathematics. The field can be traced back to the work of Turán and it was established by Erdős through his fundamental contributions and his uncounted guiding questions. Since then it has...

Mar
20
2023

Computer Science/Discrete Mathematics Seminar I

Strong Bounds for 3-Progressions
Raghu Meka and Zander Kelley
10:00am|Simonyi 101 and Remote Access

Suppose you have a set S of integers from {1 , 2 , … , N} that contains at least N / C elements. Then for large enough N , must S contain three equally spaced numbers (i.e., a 3-term arithmetic progression)?

In 1953, Roth showed that this is indeed...

Mar
17
2023

Probability Seminar

The Fyodorov-Hiary-Keating conjecture
11:15am|Simonyi 101 and Remote Access

Through the random matrix analogy, Fyodorov, Hiary and Keating conjectured very precisely the typical values of the Riemann zeta function in short intervals of the critical line, in particular their maximum. Their prediction relied on techniques...

Mar
17
2023

Probability Seminar

Bisectors in random plane geometry
Bálint Virág
10:15am|Simonyi 101 and Remote Access

In Euclidean geometry, bisectors are perpendicular lines. In random plane geometry, the situation is more complicated. I will describe bisectors in the directed landscape, the universal geometry in the KPZ class. These help answer some open...

Mar
17
2023

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

Heaviness and Relative Symplectic Cohomology
Yuhan Sun
9:15am|Remote Access

For a compact subset $K$ of a closed symplectic manifold, Entov-Polterovich introduced the notion of (super)heaviness, which reveals surprising symplectic rigidity. When $K$ is a Lagrangian submanifold, there is a well-established criterion for its...

Mar
16
2023

What is...?

Canonical Metrics in Kähler Geometry
Xi Sisi Shen
1:00pm|Simonyi Hall

In this talk, we will discuss the existence problem of extremal metrics on a Kähler manifold. The best known examples of these are Kähler-Einstein and constant scalar curvature Kähler (cscK) metrics. Yau's resolution of the Calabi conjecture proves...