Time and Location: Friday, 3:004:00PM, POB 6.304 (Previously known as ACE 6.304). Special time and locations are indicated in color.
If you are interested in meeting a speaker, please contact Kui Ren (ren@math.utexas.edu)
Here are the links to the past seminars: Fall 2014 Spring 2014 Spring 2013 Fall 2012, Spring 2012, Fall 2011, Spring 2011, Fall 2010, Spring 2010, Fall 2009
Dates 
Spekers 
Title and Abstract 



04/15/2015 
Gil Ariel, 
Multiscale dynamics of marching locust swarms. 



04/17/2015 
Sebastian
Acosta 
Thermoacoustic imaging in an enclosure with variable wave speed Unlike the freespace setting, we consider thermoacoustic imaging in a region enclosed by a surface where an impedance boundary condition is imposed. This condition models physical boundaries such as acoustic mirrors or detectors. By recognizing that the inverse problem is equivalent to boundary observability, we use control operators to derive a solvable equation for the unknown initial condition. If wellknown geometrical conditions are satisfied, this approach is naturally suited for variable wave speed and for measurements on a subset of the boundary. We will also discuss some preliminary results and challenges concerning the numerical solution of the proposed reconstruction equation 



04/24/2015 
David Aristoff 
The parallel replica method for Markov Chains 



05/05/2015 Tuesday 11:00AM12:00 POB 6.304

Jianliang Qian (Mathematics, Michigan State University) 
Fast Huygens sweeping methods for Helmholtz equations in
inhomogeneous media in the high frequency regime 



05/07/2015 Thursday 11:00AM12:00 POB 6.304 
Gustaf Soderlind (Center for Mathematical Sciences, Lund University) 
Digital Filters in Multigrid 
































