### Friday, June 5

## IM8

Boundary Integral Methods for Selected Wave-Propagation Problems

10:15 AM-12:15 PM

*Room 246*

Problems in applied mathematics and physics involving propagation of acoustic, elastic, and electromagnetic waves are important in a number of disciplines, among which is nondestructive evaluation (NDE).

The speakers in this minisymposium discuss the formulation and numerical solution of some representative wave problems via the vehicle of boundary integral equations. They will discuss problems involving electromagnetic phenomena and ultrasonic waves dealing with problems in unbounded domains via boundary methods, analytical and numerical issues which arise in connection with singularities in the integral equations, and the presence of boundaries of indefinite extent, such as a halfspace surface.

**Organizer: Frank Rizzo**

*Iowa State University*

**10:15 Application of the Symmetric-Galerkin Boundary Integral Method for Elastic Wave Scattering**
*Leonard J. Gray* and Max D. Morris, Oak Ridge National Laboratory
**10:45 High Frequency Scattering BEM Using an Asymptotic Computational Ansatz**
- Ronald A. Roberts, Iowa State University
**11:15 Residual Error Bounds in Various Norms for Solutions of a Fredholm Integral Equation of the First Kind**
*Thomas Schwengler* and Edward F. Kuester, University of Colorado, Boulder
**11:45 Boundary Integral Equations Approach to Electromagnetic Wave Phenomena**
*Joseph C. Chao*, AlliedSignal Engines, Phoenix, Arizona; and Frank Rizzo, Organizer

WP98 Homepage | Updates| Overview | Program | Speaker Index | Registration | Inns & Hotels | Dorms | Transportation

*MMD, 12/18/97*