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Center for Scientific Computation and Mathematical Modeling

Research Activities > Programs > Fast Approximate Algorithms > Leslie Greengard

Fast Multipole Method, Tree-Code and Related Approximate Algorithms.
Trading Exactness for Efficiency.

CSIC Building (#406), Seminar Room 4122.
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FMM Libraries for Computational Electromagnetics

Dr. Leslie Greengard

Department of Mathematics at Courant Institute - NYU

Abstract:   There has been enormous progress made over the last decade in developing fast-multipole accelerated integral equation solvers for Maxwell's equations in both the low and high frequency regimes. In order to create a supportable software infrastructure, however, issues of FMM acceleration, geometry representation, quadrature and iterative solution strategy should be cleanly separated. We will describe some of our recent efforts in this direction as well as a new class of direct solvers which have been designed to effectively model nearly resonant structures.