Previous Conferences & Workshops

Feb
15
2016

Geometric Structures on 3-manifolds

Minimal surfaces in 3-manifold topology
Dan Ketover
4:00pm|S-101

Min-max theory developed in the 80s by Pitts (using earlier work of Almgren) allows one to construct closed embedded minimal surfaces in 3-manifolds in great generality. The main challenge is to understand the geometry of the limiting minimal...

Feb
15
2016

Members’ Seminar

No seminar today: Presidents Day
No seminar today: Presidents Day
2:00pm|S-101
Feb
12
2016

Augmentations and Legendrians at the IAS

A quantitative look at Lagrangian cobordisms
2:30pm|S-101

Lagrangian cobordisms between Legendrian submanifolds arise in Relative Symplectic Field Theory. In recent years, there has been much progress on answering qualitative questions such as: For a fixed pair of Legendrians, does there exist a Lagrangian...

Feb
12
2016

Augmentations and Legendrians at the IAS

A frontal view on Lefschetz fibrations II
Roger Casals
1:00pm|S-101

In this series of two talks we will discuss Weinstein structures endowed with a Lefschetz fibration in terms of the Legendrian front projection. The main focus is on Weinstein manifolds which admit a Weinstein Lefschetz fibration with an $A_k$-fibre...

Feb
12
2016

Augmentations and Legendrians at the IAS

A frontal view on Lefschetz fibrations I
10:40am|S-101

In this series of two talks we will discuss Weinstein structures endowed with a Lefschetz fibration in terms of the Legendrian front projection. The main focus is on Weinstein manifolds which admit a Weinstein Lefschetz fibration with an $A_k$-fibre...

Feb
11
2016

Joint IAS/Princeton University Number Theory Seminar

Statistics of abelian varieties over finite fields
4:30pm|Fine 214, Princeton University

Joint work with Jacob Tsimerman. Let $B(g,p)$ denote the number of isomorphism classes of $g$-dimensional abelian varieties over the finite field of size $p$. Let $A(g,p)$ denote the number of isomorphism classes of principally polarized $g$...

Feb
11
2016

Augmentations and Legendrians at the IAS

Satellite operations and Legendrian knot theory
2:30pm|S-101

Satellite operations are a common way to create interesting knot types in the smooth category. It starts with a knot $K$, called the companion knot, in some manifold $M$ and another knot $P$, called the pattern, in $S^1 \times D^2$ and then creates...

Feb
11
2016

Augmentations and Legendrians at the IAS

Toward a contact Fukaya category
Lenny Ng
1:00pm|S-101

I will describe some work in progress (maybe more accurately, wild speculation) regarding a version of the derived Fukaya category for contact 1-jet spaces $J^1(X)$. This category is built from Legendrian submanifolds equipped with augmentations...

Feb
11
2016

Augmentations and Legendrians at the IAS

Restrictions on the fundamental group of some Lagrangian cobordisms
Baptiste Chantraine
10:40am|S-101

In this talk we will describe two methods which shows that, under some rigidity assumptions on the involved Legendrian submanifolds, a Lagrangian cobordism is simply connected. The first one uses the functoriality of the fundamental class in...