Previous Conferences & Workshops
A frontal view on Lefschetz fibrations I
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...
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 $g$...
Satellite operations and Legendrian knot theory
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...
2:00pm|Fine 801, Princeton University
Toward a contact Fukaya category
Lenny Ng
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...
Restrictions on the fundamental group of some Lagrangian cobordisms
Baptiste Chantraine
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...
Hyperbolicity in dynamics
"Hyperbolic" ranks highly among the most-abused terms in
dynamics. I'll prolong this abuse, and argue for its value, by
illustrating a variety of dynamical systems with distinct forms of
hyperbolic behavior that have known or conjectured...
Obstructions to minimal fibrations of hyperbolic 3-manifolds
Through the work of Agol and Wise, we know that all closed
hyperbolic 3-manifolds are finitely covered by a surface bundle
over the circle. Thus the geometry of these bundles indicates the
geometry of general hyperbolic 3-manifolds. But there are...
The singularity of symbolic matrices
The main object of study of this talk are matrices whose entries
are linear forms in a set of formal variables (over some field).
The main problem is determining if a given such matrix is
invertible or singular (over the appropriate field of...
Variance of sums of arithmetic functions over primes in short intervals
Jon Keating
Goldston & Montgomery and Montgomery & Soundararajan have
established formulae for the variance of sums of the von Magoldt
function over short intervals (i.e. for the variance of the number
of primes in these intervals) assuming, respectively, the...