BIB-VERSION:: CS-TR-v2.0 ID:: STAN//NA-M-90-06 ENTRY:: January 28, 1996 ORGANIZATION:: Stanford University, Department of Computer Science, Numerical Analysis Project TITLE:: The nonsymmetric Lanczos algorithm and controllability TYPE:: Manuscript AUTHOR:: Boley, Daniel L. AUTHOR:: Golub, Gene H. DATE:: May 1990 PAGES:: 18 ABSTRACT:: We give a brief description of a non-symmetric Lanczos algorithm that does not require strict bi-orthogonality among the generated vectors. We show how the vectors generated are algebraically related to "Controllable Space" and "Observable Space" for a related linear dynamical system. The algorithm described is particularly appropriate for large sparse systems. NOTES:: [Adminitrivia V1/Prg/19960128] END:: STAN//NA-M-90-06