Previous Conferences & Workshops
The Goncharov reading group is an informal seminar which will
read the paper "Volumes of hyperbolic manifolds and mixed Tate
motives" and related materials. We will meet on Wednesdays at 10 am
in Simonyi 114.
Random Matrix Theory and Zeta Functions
We review some of the connections, established and expected
between random matrix theory and Zeta functions. We also discuss
briefly some recent Universality Conjectures connected with
families of L-functions.
Simplicial complexes as expanders
Expanders are highly connected sparse graphs. Simplicial
complexes are a natural generalization of graphs to higher
dimension, and the notions of connectedness and expansion turn out
to have interesting analogues, which relate to the homology
and...
Moduli of super Riemann surfaces (Joint with E. Witten)
This will be a gentle intro, aimed at a general mathematical
audience, to supergeometry: supermanifolds, super Riemann surfaces,
super moduli, etc. As time permits, we will discuss various aspects
of supergeometry, including deformation theory and...
A remark on the Euler equations of hydrodynamics
The time evolution of an ideal incompressible fluid is described
by the Euler equations. In this mostly speculative talk I will
discuss a connection between stationary solutions of these
equations and symplectic topology, as well as possible...
Local Correctability of Expander Codes
Brett Hemenway
An error-correcting code is called locally decodable if there
exists a decoding algorithm that can recover any symbol of the
message with high probability by reading only a small number of
symbols of the corrupted codeword. There is a fundamental...
Tagged particle diffusion in one-dimensional systems with Hamiltonian dynamics
Abhishek Dhar
I will present results on the study of various temporal
correlation functions of a tagged particle in a one-dimensional
system of interacting particles evolving with Hamiltonian dynamics
and with initial conditions chosen from thermal equilibrium.
Boltzmann's Entropy and the Time Evolution of Macroscopic Systems
Boltzmann defined the entropy, \(S(M)\), of a macroscopic system
in a macrostate \(M\) as the "log of the volume of phase space"
corresponding to the system being in \(M\). This definition was
extended by von Neumann to quantum systems as "the log...
Random constraint satisfaction problems: the statistical mechanics approach and results
Guilhem Semerjian
In the 90's numerical simulations have unveiled interesting
properties of random ensembles of constraint satisfaction problems
(satisfiability and graph coloring in particular). When a parameter
of the ensemble (the density of constraints per...
Self-avoiding walk in dimension 4
The (weakly) self-avoiding walk is a basic model of paths on the
d-dimensional integer lattice that do not intersect (have few
intersections), of interest from several different perspectives. I
will discuss a proof that, in dimension 4, the...