Research talks


The tangential touch problem for fully nonlinear elliptic operators

Partial Differential Equations Seminar, University of Oxford, 10/19/15.


Regularity of shadows and the singular set associated to a Monge-Ampere equation

Analysis and PDE Seminar, University of Sussex, 10/5/15.


The tangential touch problem for fully nonlinear elliptic operators

Max Planck Institute for Mathematics in the Sciences, Leipzig, 7/10/15.


Stability estimates for the log-Sobolev ineqality

Information Theory and Concentration Phenomena, IMA, University of Minnesota, 4/15/15.


A sharp quantitative polygonal isoperimetric inequality

Rheinische Friedrich-Wilhelms-Universität Bonn, 2/5/15.


Stability estimates for the log-Sobolev inequality

Entropy and singular solutions for conservation laws: pressureless gas dynamics and other applications conference, West Virginia University, 9/26/14.


A sharp quantitative isoperimetric inequality inside convex cones

Le séminarie d’Analyse Fonctionnelle, Université Pierre et Marie Curie, 6/12/14.  


The regularity theory for the free boundary arising in the optimal partial transport problem

Groupe de travail Courbure, transport optimal, et probabilités, Institut Henri Poincaré, 6/5/14.

Fully nonlinear elliptic and parabolic free boundary problems

Analysis Seminar, West Virginia University, 4/24/14.


A sharp quantitative log-Sobolev inequality

Young European Probabilists XI, Technische Universiteit Eindhoven, 3/12/14.  


A sharp quantitative log-Sobolev inequality

Analysis Seminar, University of Pennsylvania, 2/25/14.


Regularity of shadows and the singular set associated to a Monge-Ampere equation

CNA Seminar, Carnegie Mellon University, 2/11/14.


A sharp quantitative log-Sobolev inequality

Mathematical Physics Seminar, California Institute of Technology, 1/29/14. 


Regularity of shadows and the singular set associated to a Monge-Ampere equation

Postdoc Seminar, Mathematical Sciences Research Institute, Berkeley, 12/6/13.


Regularity of shadows and the singular set associated to a Monge-Ampere equation

Geometry Seminar, Stanford University, 11/18/13. 


Optimal regularity for the shadow boundary generated by parallel illumination

Analysis Seminar, The University of Auckland, 8/1/13. 


Stability for the log-Sobolev inequality

Partial Differential Equations and Analysis Seminar, The Australian National University, 6/18/13.


Optimal transport, free boundary regularity, and stability results for geometric and functional inequalities

Analysis Seminar, The University of Texas at Austin, 11/26/12.


Free boundary regularity for the optimal partial transport problem

Transport, Flows and Applications Workshop, The Australian National University, 7/17/12.


Stability for the relative isoperimetric inequality inside an open, convex cone

Math Physics Seminar, Georgia Institute of Technology, 4/30/12.


Optimal transport and quantitative isoperimetric inequalities

Analysis Seminar, The University of Texas at Austin, 1/27/10.


Talks aimed at high school, undergraduate, and graduate students


Regularity of shadows and the singular set associated to a Monge-Ampere equation

Student Harmonic Analysis and PDE seminar, UC Berkeley, 11/19/13.


Solving polynomial equations with circulant matrix theory

Berkeley Math Circle, UC Berkeley, 11/5/13.


Free boundary regularity for the optimal partial transport problem

6th Annual Graduate Student Probability Conference, Georgia Tech, 4/27/12.


Stability of soap bubbles

Undergraduate Math Club, UT Austin, 10/24/11.


Stability for the relative isoperimetric inequality inside convex cones

5th Annual Graduate Student Probability Conference, Georgia Tech, 5/1/11.

 

Ellipsoids of minimum volume

Jr. Analysis Seminar, UT Austin, 2/18/11.


A variant of the Monge-Kantorovich problem

Jr. Analysis Seminar, UT Austin, 9/24/10.


The sharp Sobolev inequality

Jr. Analysis Seminar, UT Austin, 4/12/10.


The Monge-Kantorovich problem

Jr. Math Finance / Probability Seminar, UT Austin, 12/11/09.


The DeGiorgi-Nash-Moser theorem

Jr. Analysis Seminar, UT Austin, 9/14/09.


The Thomas-Fermi problem

Jr. Analysis Seminar, UT Austin, 4/6/09.


An investigation of really simple functions

Sophex Seminar, UT Austin, 2/22/08.


A survey of the Collatz conjecture

Sophex Seminar, UT Austin, 9/21/07.