Seminars Sorted by Series

Venkatesh Working Group

Verlinde Dimension Formula

Oct
13
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Oct
20
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Nov
03
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the Moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Nov
10
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the Moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Nov
17
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the Moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Dec
01
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the Moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Virtual Workshop on Missing Data Challenges in Computation, Statistics and Applications

Virtual Workshop on Missing Data Challenges in Computation, Statistics and Applications

Sep
08
2020

Virtual Workshop on Missing Data Challenges in Computation, Statistics and Applications

Experimental Evaluation of Computer-Assisted Human Decision Making: A Missing Data Approach
Kosuke Imai
11:55am|Virtual

Abstract: In today’s data-driven society, human beings still make most critical decisions and yet they are increasingly utilizing recommendations produced by statistical and machine learning methods. Given the prevalence of this approach in many...

Sep
09
2020

Virtual Workshop on Missing Data Challenges in Computation, Statistics and Applications

Causal inference with binary outcomes subject to both missingness and misclassification
Grace Yi
1:30pm|Virtual

Abstract: Causal inference has been widely conducted in various fields and many methods have been proposed for different settings. However, for noisy data with both mismeasurements and missing observations, those methods often break down. In this...

Sep
09
2020

Virtual Workshop on Missing Data Challenges in Computation, Statistics and Applications

Regularization and spurious correlations in sparse single-cell transcriptomes
Mickey Atwal
2:45pm|Virtual

Abstract: Recent advances in biotechnology and genomics have generated dizzying amounts of large, noisy, and sparse datasets that require concomitant development of machine learning methods. The analyses of single-cell RNA-seq data have driven the...

Virtual Workshop on Recent Developments in Geometric Representation Theory

Nov
16
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

Modular Perverse Sheaves on the affine Flag Variety
Laura Rider
3:00pm|Wolfensohn Hall and Remote Access

There are two categorical realizations of the affine Hecke algebra: constructible sheaves on the affine flag variety and coherent sheaves on the Langlands dual Steinberg variety. A fundamental problem in geometric representation theory is to relate...

Nov
16
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

The integral coefficient geometric Satake equivalence in mixed characteristic
4:30pm|Wolfensohn Hall and Remote Access

The geometric Satake equivalence establishes a link between two categories: the category of spherical perverse sheaves on the affine Grassmannian and the category of representations of the Langlands dual group. It has found many important...

Nov
17
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

Coherent categorification of quantum loop sl(2)
8:00am|Wolfensohn Hall and Remote Access

We explain an equivalence of categories between a module category of quiver Hecke algebras associated with the Kronecker quiver and a category of equivariant perverse coherent sheaves on the nilpotent cone of type A. This provides a link between two...

Nov
17
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

The Picard group of the stable module category of a finite group
9:30am|Wolfensohn Hall and Remote Access

The Picard group of the stable module category of a finite group plays a role in many parts of modular representation theory. It was calculated when the group is an abelian $p$-group, by pioneering work of Dade in the 1970's, and a classification...

Nov
17
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

Path isomorphisms between quiver Hecke and diagrammatic Bott-Samelson endomorphism algebras
Amit Hazi
11:00am|Wolfensohn Hall and Remote Access

We construct an explicit isomorphism between certain truncations of quiver Hecke algebras and Elias-Williamson's diagrammatic endomorphism algebras of Bott-Samelson bimodules. As a corollary, we deduce that the decomposition numbers of these...

Nov
18
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

2-Verma modules
Gregoire Naisse and Pedro Vaz
2:00pm|Wolfensohn Hall and Remote Access

Categorification of integrable representations of quantum Kac--Moody algebras is a relatively well-developed subject nowadays, which has found several applications, in particular to low-dimensional topology. The story outside of the integrable world...