Previous Special Year Seminar
Non-Local Minimal surfaces
Jean-Michel Roquejoffre
We discuss the local properties of the boundaries of sets whose
indicator function is a local minimizer of a Sobolev norm of
exponent strictly less than 1/2. It turns out that one devise a
regularity that parallels very much that of de Giorgi for...
Fractional Diffusion Limit for Kinetic Equations
Antoine Mellet
We will discuss diffusion limits for linear Boltzmann equations.
When the equilibrium distribution function is a Maxwellian
distribution, it is well known that for an appropriate time scale,
the small mean free path limit gives rise to a diffusion...
Issues in Homogenization for Problems with Nondivergence Structure
When we look at a differential equation in a very irregular
media (composite material, mixed solutions, etc.) from very close,
we may see a very complicated problem. However, if we look from far
away we may not see the details and the problem may...
Issues in Homogenization for Problems with Nondivergence Structure
When we look at a differential equation in a very irregular
media (composite material, mixed solutions, etc.) from very close,
we may see a very complicated problem. However, if we look from far
away we may not see the details and the problem may...
Minimally Invasive Surgery for Ricci Flow Singularities
Don Knopf
If a solution (M,g(t)) of Ricci flow develops a local
singularity at a finite time T , then there is a proper subset S of
M on which the curvature becomes infinite as time approaches T .
Existing approaches to Ricci-flow-with-surgery, due to...
Blow-Up Profile for Q-Curvature Equations
Yongzhang Xu
In this talk, I will describe the blow-up profile for
Q-curvature equations and related work.
Conformal Geometry of Differential Equations
Pawel Nurowski
Given two differential equations it is often useful to know
invariants which guarantee that there exists a transformation of
variables (independent, dependent or both) that transforms one of
the equations into the other. Recently it has been...
On Neck Pinching Under Mean Curveature Flow
Israel Michael Sigal
In this talk we describe some recent result as well as the work
in progress on the neck pinching of surfaces under under mean
curvature flow.
Existence and Uniqueness of Meissner State Solutions to Nonselfdual Chern-Simons-Higgs Equation
In this talk, we prove existence and uniqueness of vortexless
solutions for Chern-Simons-Higgs equation in nonselfdual case.
Differential Complexes in Conformal Geometry
Rod Gover
The de Rham complex is a prototype for a large class of
sequences of differential operators often called (generalized)
Bernstein-Gelfand-Gelfand BGG sequences. Conformal manifolds admit
such sequences and on locally conformally flat manifolds the...