Seminar Announcement

An Iterative Method for Solving Complex-Symmetric Systems Arising in Electrical Power Modeling

Victoria E. Howle
Cornell University
Center for Applied Mathematics

Tuesday, February 8, 2000
Bldg. 922, Room 137
10:00 a.m. - 11:00 a.m.

We propose an iterative method for solving a complex-symmetric linear system arising in electric power networks. Our method extends Gremban, Miller and Zagha's support-tree preconditioner to handle complex weights and vastly different admittances. Our underlying iteration is a modification to BiCG to enhance accuracy. In this talk I'll describe our extensions to support-tree preconditioners and our modifications to BiCG and present some computational results.

This seminar is hosted by the Computational Sciences and Mathematics Research Department at Sandia National Labs in Livermore, CA. For more information on this or other events, visit http://csmr.ca.sandia.gov/news.html. Visitors from outside Sandia require advance arrangements in order to attend. For more information, please contact the CSMR office management assistant Doretha Smith at dahall@sandia.gov or (925) 294-4630.