Previous Conferences & Workshops

Apr
10
2023

IAS/Princeton Arithmetic Geometry Seminar

Around Logarithmic Prismatic Chomology
Teruhisa Koshikawa
4:30pm|Simonyi Hall 101 and Remote Access

I will recall my approach to log prismatic cohomology and discuss some results on them (partly joint with Zijian Yao). I will also try to offer a stacky perspective.

Apr
10
2023

Members' Colloquium

Cohomology and arithmetic of some mapping spaces
2:00pm|Simonyi Hall 101 and Remote Access - see Zoom link below

How do we describe the topology of the space of all nonconstant holomorphic (respectively, algebraic) maps F: X--->Y  from one complex manifold (respectively, variety) to another? What is, for example, its cohomology? Such problems are old but...

Apr
10
2023

Computer Science/Discrete Mathematics Seminar I

Quantum Error Correction, Systolic Geometry, and Probabilistic Embeddings
Elia Portnoy
11:15am|Simonyi 101 and Remote Access

A CSS quantum code $\mathcal{C} = (W_1, W_2)$ is a pair of orthogonal subspaces in $\mathbb{F}_2^n$. The distance of $\mathcal{C}$ is the smallest hamming weight of a vector in $W_1^{\perp}-W_2$ or $W_2^{\perp}-W_1$. A large distance roughly means...

Apr
07
2023

Probability Seminar

Topic #1 (Kavvadias): Conformal removability of non-simple Schramm-Loewner evolutions; Topic #2 (Narayanan): Large deviations for random hives and the spectrum of the sum of two random matrices.
Hariharan Narayanan and Konstantinos Kavvadias
10:15am|Simonyi 101 and Remote Access

Topic #1 (Kavvadias): We consider the Schramm-Loewner evolution (SLE_{kappa}) for kappa in (4,8), which is the regime that the curve is self-intersecting but not space-filling. We let K be the set of kappa in (4,8) for which the adjacency graph of...

Apr
06
2023

Joint IAS/PU Number Theory Seminar

Subconvexity for L-functions on U(n) x U(n+1)
Simon Marshall
4:30pm|Simonyi Hall 101 and Remote Access

We prove this bound by first using the unitary Ichino-Ikeda formula of N. Harris to relate the central L-value to an automorphic period integral.  There is a `trivial' bound for this integral, which turns out to correspond to the convexity bound for...

Apr
06
2023

What is...?

What is an Inverse Problem?
Malena Español
1:30pm|Simonyi Hall 101
Apr
05
2023

Analysis and Mathematical Physics

Scattering for nonlinear wave equations
3:00pm|Simonyi Hall 101 and Remote Access

We construct solutions with prescribed radiation fields for wave equations with polynomially decaying sources close to the lightcone. In this setting, which is motivated by semi-linear wave equations satisfying the weak null condition, solutions to...