Previous Conferences & Workshops

Nov
26
2018

Computer Science/Discrete Mathematics Seminar I

Classical Verification of Quantum Computations
Urmila Mahadev
11:15am|Simonyi Hall 101

We present the first protocol allowing a classical computer to interactively verify the result of an efficient quantum computation. We achieve this by constructing a measurement protocol, which allows a classical string to serve as a commitment to a...

Nov
26
2018

Computer Science/Discrete Mathematics Seminar I

Classical Verification of Quantum Computations
Urmila Mahadev
11:15am|Simonyi Hall 101

We present the first protocol allowing a classical computer to interactively verify the result of an efficient quantum computation. We achieve this by constructing a measurement protocol, which allows a classical string to serve as a commitment to a...

Nov
20
2018

Variational Methods in Geometry Seminar

The min-max width of unit volume three-spheres
Lucas Ambrozio
3:30pm|Simonyi Hall 101

The (Simon-Smith) min-max width of a Riemannian three dimensional sphere is a geometric invariant that measures the tightest way, in terms of area, of sweeping out the three-sphere by two-spheres. In this talk, we will explore the properties of this...

Nov
20
2018

Variational Methods in Geometry Seminar

Almgren's isomorphism theorem and parametric isoperimetric inequalities
1:00pm|Simonyi Hall 101

In the 60's Almgren initiated a program for developing Morse theory on the space of flat cycles. I will discuss some simplifications, generalizations and quantitative versions of Almgren's results about the topology of the space of flat cycles and...

Nov
20
2018

Computer Science/Discrete Mathematics Seminar II

Introduction to Query-to-Communication Lifting
10:30am|Simonyi Hall 101

I will survey new lower-bound methods in communication complexity that "lift" lower bounds from decision tree complexity. These methods have recently enabled progress on core questions in communication complexity (log-rank conjecture, classical-...

Nov
19
2018

Symplectic Dynamics/Geometry Seminar

Lyapunov exponents for small random perturbations of predominantly hyperbolic two dimensional volume-preserving diffeomorphisms, including the Standard Map
Alex Blumenthal
3:30pm|Simonyi Hall 101

An outstanding problem in smooth ergodic theory is the estimation from below of Lyapunov exponents for maps which exhibit hyperbolicity on a large but non- invariant subset of phase space. It is notoriously difficult to show that Lypaunov exponents...

Nov
19
2018

Members’ Seminar

A tale of two conjectures: from Mahler to Viterbo.
2:00pm|Simonyi Hall 101

In this talk we explain how billiard dynamics can be used to relate a symplectic isoperimetric-type conjecture by Viterbo with an 80-years old open conjecture by Mahler regarding the volume product of convex bodies. The talk is based on a joint work...

Nov
19
2018

Theoretical Machine Learning Seminar

Prediction with a Short Memory
Sham Kakade
12:15pm|White Levy Room

We consider the problem of predicting the next observation given a sequence of past observations, and consider the extent to which accurate prediction requires complex algorithms that explicitly leverage long-range dependencies. Perhaps surprisingly...