Date:

Monday, March 03, 2008,
11:00 am - 12:00 pm.

Place:

Mathematics Conference Room 626, UCD Building, 1250 14th St., Denver.

Speaker:

Kristian Sandberg.

Affiliation:

Dept. of Applied Mathematics, University of Colorado at Boulder.

Title:

Mathematical Methods in Seismic Imaging

Abstract:

By analyzing the surface response of sound waves propagating through the earth, geophysicists can produce 3D models of the subsurface structure. This methodology is often referred to as seismic imaging. In this talk I will give an overview of the topic and its numerical challenges. We will also look at some recent methods to efficiently solve both the forward modeling problem and the inverse problem. These methods include a new construction of a pseudo-spectral derivative and methods for efficiently computing spectral projectors and representing operators in higher dimensions.