Previous Conferences & Workshops

Mar
14
2016

Members’ Seminar

Members seminar today canceled due to illness.
Members seminar today canceled due to illness.
2:00pm
Mar
14
2016

Computer Science/Discrete Mathematics Seminar I

Lower bounds for homogeneous depth-5 arithmetic circuits over finite fields
Mrinal Kumar
11:15am|S-101

The last few years have seen substantial progress on the question of proving lower bounds for homogeneous depth-4 arithmetic circuits. Even though these results seem to come close to resolving the VP vs VNP question, it seems likely that the...

Mar
10
2016

Joint IAS/Princeton University Number Theory Seminar

Iwasawa theory for the symmetric square of a modular form
David Loeffler
4:30pm|S-101

Iwasawa theory is a powerful technique for understanding the link between the special values of L-functions and arithmetic objects (such as class groups of number fields, or Mordell-Weil groups of elliptic curves). In this talk I'll discuss what...

Mar
10
2016

Joint IAS/Princeton University Symplectic Geometry Seminar

Homological Mirror Symmetry for singularities of type $T_{pqr}$
10:30am|S-101

We present some homological mirror symmetry statements for the singularities of type $T_{p,q,r}$. Loosely, these are one level of complexity up from so-called 'simple' singularities, of types $A$, $D$ and $E$. We will consider some symplectic...

Mar
09
2016

Mathematical Conversations

Where a surface is determined by its boundary: the world of Lagrangian fillings of Legendrian knots
6:00pm|Dilworth Room

Given a smooth knot in the 3-sphere, there are many topologically distinct smooth surfaces in the 4-ball that have this knot as its boundary. However, if the knot is Legendrian, meaning that it satisfies a geometrical condition imposed by a contact...

Mar
08
2016

Geometric Structures on 3-manifolds

Proper affine actions of right angled Coxeter groups
Jeffrey Danciger
2:00pm|S-101

We prove that any right-angled Coxeter group on $k$ generators admits a proper action by affine transformations on $\mathbb R^{k(k-1)/2}$. As a corollary, many interesting groups admit proper affine actions including surface groups, hyperbolic three...

Mar
08
2016

Analysis Seminar

The hidden landscape of localization of eigenfunctions
1:00pm|S-101

Numerous manifestations of wave localization permeate acoustics, quantum physics, mechanical and energy engineering. It was used in construction of noise abatement walls, LEDs, optical devices, to mention just a few applications. Yet, no systematic...

Mar
08
2016

Computer Science/Discrete Mathematics Seminar II

Fast learning requires good memory: a time-space lower bound for parity learning
10:30am|S-101

We prove that any algorithm for learning parities requires either a memory of quadratic size or an exponential number of samples. This proves a recent conjecture of Steinhardt, Valiant and Wager and shows that for some learning problems a large...