Seminars Sorted by Series

What Is .... ?

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...

Mar
23
2023

What Is .... ?

Wondering About Wandering Domains
Adi Glücksam
1:00pm|Simonyi Hall 101

The goal of this talk is to present two problems related to wandering domains. I will define the participating objects, and give a historical overview of what was done and what is left to do to solve these problems. 

No basic knowledge in complex...

Mar
30
2023

What Is .... ?

What is Combinatorial Hodge Theory?
Johanna Steinmeyer
1:00pm|Simonyi Hall 101
Apr
06
2023

What Is .... ?

What is an Inverse Problem?
Malena Español
1:30pm|Simonyi Hall 101
Apr
20
2023

What Is .... ?

What is a D-module?
Lizzie Pratt
1:00pm|Simonyi 101 and Remote Access

In this talk, we will discuss the computation of motivic stable homotopy groups and their applications in classical computations. Specifically, we will discuss an example of complex motivic applications in classical theory, the Adams spectral...

What is...?

Oct
06
2023

What is...?

What is Combinatorial Discrepancy?
Peng Zhang
1:00pm|Simonyi 101 and Remote Access

Combinatorial discrepancy asks the following question: Given a ground set U and a collection S of subsets of U, how do we color each element in U red or blue so that each subset in S has almost an equal number of each color? A straightforward idea...

Oct
20
2023

What is...?

What is a High Dimensional Expander?
1:00pm|Simonyi 101 and Remote Access
Oct
27
2023

What is...?

What are the Malle-Bhargava Conjectures?
Alina Bucur
1:00pm|Simonyi 101 and Remote Access

We will explore some counting problems for number fields in which the conjectures formulated first by Malle and refined by Bhargava play a central role. In the process we will see some standard techniques in analytic number theory. 

Nov
10
2023

What is...?

What is...the Sum-Product Problem?
Sarah Peluse
1:00pm|Simonyi 101 and Remote Access
Dec
01
2023

What is...?

What is an Incompressible Surface in a 3-Manifold?
1:00pm|Simonyi 101 and Remote Access

For a low-dimensional manifold, one often tries to understand its intrinsic topology and geometry through its submanifolds, in particular of co-dimension 1. To be interesting and to give some information, such a submanifold should interact with the...

Mar
07
2024

What is...?

What is a Venetian Blind?
Alan Chang
1:00pm|Simonyi 101 and Remote Access
Mar
21
2024

What is...?

What is a Graph Complex?
1:00pm|Simonyi 101 and Remote Access

I’ll describe graph complexes, introduced by Kontsevich in the context of mathematical physics. I’ll survey its connections to geometry and topology, highlighting its relation to the cohomology of moduli spaces of curves. 

Apr
04
2024

What is...?

What is Bakry-Émery Curvature?
Mira Gordin
1:00pm|Simonyi 101 and Remote Access
Apr
11
2024

What is...?

What is a Hardt-Simon Foliation?
Anna Skorobogatova
1:00pm|Simonyi 101 and Remote Access
Apr
18
2024

What is...?

What is Wave Turbulence?
Michal Shavit
1:00pm|Simonyi 101 and Remote Access
May
02
2024

What is...?

What are Rational and Du Bois Singularities?
Wanchun Shen
1:00pm|Simonyi 101 and Remote Access

We give a gentle introduction to rational and Du Bois singularities in algebraic geometry. Through examples, we will see how birational geometry comes into play with the theory of differential operators. Time permitting, we discuss the sheaf...

May
16
2024

What is...?

What is the Calderbank-Shor-Steane Codes?
1:00pm|Simonyi 101 and Remote Access

Working Group on Algebraic Number Theory