Previous Conferences & Workshops

Feb
21
2019

Joint IAS/Princeton University Number Theory Seminar

Automorphy of mod 3 representations over CM fields
4:30pm|Princeton University, Fine 214

Wiles's proof of the modularity of semistable elliptic curves over the rationals uses the Langlands-Tunnell theorem as a starting point, implying that the mod 3 Galois representation attached to the elliptic curve arises from a modular form of...

Feb
21
2019

Working Seminar on Algebraic Number Theory

Class groups and Galois cohomology
Shilin Lai
2:15pm|Princeton University, Fine 1201

From Romyar's AWS notes:

  • Section 5.1, especially: Prop 5.1.5, Cor 5.1.9, Rem 5.1.10, Ex 5.1.11

From McCallum-Sharifi:

  • Explain why $\mathbb{Q}(37^{1/37})$ has class number prime-to-37 (this is Cor 7.6). It may simplify the proof to use Cor 5...
Feb
21
2019

Analysis Seminar

Plateau’s problem as a capillarity problem
1:00pm|Simonyi Hall 101

We introduce a length scale in Plateau’s problem by modeling soap films as liquid with small volume rather than as surfaces, and study the relaxed problem and its relation to minimal surfaces. This is based on joint works with Antonello Scardicchio...

Feb
20
2019

Mathematical Conversations

Finite fields and the Ax–Grothendieck theorem
6:00pm|Dilworth Room

The Ax–Grothendieck theorem from the 1960s says that an injective polynomial $f \colon \mathbb{C}^n \rightarrow \mathbb{C}^n$ is also surjective. It is one of the first examples of the powerful technique in algebraic geometry of using finite fields...

Feb
19
2019

Variational Methods in Geometry Seminar

Invariant metrics and the Greene-Wu conjectures
3:30pm|Simonyi Hall 101

It has been conjectured that a simply-connected complete Kahler manifold of negatively pinched sectional curvature is biholomorphic to a bounded domain in complex Euclidean space. One evidence is that the manifold is Stein, which is, in particular...

Feb
19
2019

Symplectic Dynamics Working Group

Entropy and dynamical systems in dimension 2
Fabio Tal
1:30pm|West Building Lecture Hall

One of the most useful tools in quantifying the complexityof a dynamical system are the concepts of topological and metricentropy. While relevant in several contexts, entropy plays aparticularly important role in describing the behaviour of...

Feb
19
2019

Variational Methods in Geometry Seminar

On minimizers and critical points for anisotropic isoperimetric problems
1:00pm|Simonyi Hall 101

Anisotropic surface energies are a natural generalization of the perimeter functional that arise in models in crystallography and in scaling limits for certain probabilistic models on lattices. This talk focuses on two results concerning...

Feb
19
2019

Computer Science/Discrete Mathematics Seminar II

Lorentzian polynomials
10:30am|Simonyi Hall 101

Lorentzian polynomials link continuous convex analysis and discrete convex analysis via tropical geometry. The class of Lorentzian polynomials contains homogeneous stable polynomials as well as volume polynomials of convex bodies and projective...