Previous Conferences & Workshops

Sep
15
2025

Joint IAS/PU Arithmetic Geometry

A New Geometric Approach to $p$-adic Differential Equations
Guido Bosco
3:30pm|Princeton University, Fine 224

In the past decade, $p$-adic Hodge theory has been transformed by the discovery of perfectoid spaces and the Fargues–Fontaine curve. One area, however, that has remained almost untouched by these breakthroughs is the theory of $p$-adic differential...

Sep
15
2025

Computer Science/Discrete Mathematics Seminar I

Combinatorial and Geometric Challenges in PAC Learning with Partial Concepts
Shay Moran
11:00am|Simonyi Hall 101 and Remote Access

I will describe a recent extension of the classical PAC (Probably Approximately Correct) learning framework [Vapnik and Chervonenkis, 1970s; Valiant, 1980s]. This extension makes it possible to model a wide range of common and practical data...

Sep
08
2025

Joint IAS/PU Arithmetic Geometry

The Gysin Map in 𝐏¹-homotopy Theory
Longke Tang
3:30pm|Princeton University, Fine 224

The Gysin map, or the wrong-way map, is a classical construction that has been available for various cohomology theories and in 𝐀¹-homotopy theory. In this talk, I will give a construction of it based on 𝐏¹-homotopy theory, so that it specializes to...

Jun
20
2025

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

A toric case of the Thomas-Yau conjecture
Jacopo Stoppa
9:15am|Remote Access

We consider a class of Lagrangian sections L contained in certain Calabi-Yau Lagrangian fibrations (mirrors of toric weak Fano manifolds). We prove that a form of the Thomas-Yau conjecture holds in this case: L is Hamiltonian isotopic to a special...

Jun
17
2025

Computer Science/Discrete Mathematics Seminar II

Upper Bounds for Multicolour Ramsey Numbers
Marius Tiba
10:30am|Simonyi Hall 101 and Remote Access

The $r$-colour Ramsey number $R_r(k)$ is the minimum $n \in \mathbb{N}$ such that every $r$-colouring of the edges of the complete graph $K_n$ on $n$ vertices contains a monochromatic copy of $K_k$. We prove, for each fixed $r \ge 2$, that 

$$R_r(k)...

Jun
13
2025

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

Three 20 Minute Research Talks
Shuo Zhang , Kifung Chan and May Sela
9:15am|Remote Access

Shuo Zhang (Morningside Center of Mathematics):Composed Dehn twist exact sequence through quilts and $(A_\infty,n)$ modules

We prove the quilted Floer cochain complexes form $(A_\infty,n)$ modules over the Fukaya category $Fuk(M \times M^-)$. Then...

May
30
2025

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

Towards the HZ- and Multiplicity Conjectures for Dynamically Convex Reeb Flows
Basak Gurel
9:15am|Remote Access

In this talk we discuss the multiplicity question for prime closed orbits of a dynamically convex Reeb flow on the boundary of a $2n$-dimensional star-shaped domain. Our first main result asserts that such a flow has at least n prime closed Reeb...

May
29
2025

Special Year Seminar II

Fourier-Mukai Transform for Tropical Abelian Varieties
Farbod Shokrieh
10:00am|Simonyi 101

I will present a (cohomological) Fourier-Mukai transform for tropical Abelian varieties and give some applications, including a (generalized) Poincaré formula (for non-degenerate line bundles on tropical Abelian varieties).

Based on joint work with...