A QL procedure for computing the eigenvalues of complex symmetric tridiagonal matrices
- Jane K. Cullum
- Ralph A. Willoughby
- 1996
- SIMAX
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14 results for Ralph A. Willoughby
A generalized nonsymmetric Lanczos procedure
- Jane Cullum
- Wolfgang Kerner
- et al.
- 1989
- Computer Physics Communications
A survey of Lanczos procedures for very large real 'symmetric' eigenvalue problems
- Jane Cullum
- Ralph A. Willoughby
- 1985
- J. Comput. Appl. Math.
LANCZOS PROCEDURE FOR THE MODAL ANALYSIS OF VERY LARGE NONSYMMETRIC MATRICES.
- J. Cullum
- R. Willoughby
- 1983
- CDC 1983
A sparsity-based technique for identifying slow-coherent areas in large power systems
- Joe H. Chow
- Jane Cullum
- et al.
- 1984
- IEEE Transactions on Power Apparatus and Systems
A Sparsity-Based Technique for Identifying Slow-Coherent Areas in Large Power Systems
- J.H. Chow
- J. Cullum
- et al.
- 1984
- IEEE Power Engineering Review
Computing eigenvalues of very large symmetric matrices-An implementation of a Lanczos algorithm with no reorthogonalization
- Jane Cullum
- Ralph A Willoughby
- 1981
- Journal of Computational Physics
The Lanczos phenomenon-An interpretation based upon conjugate gradient optimization
- Jane Cullum
- Ralph A. Willoughby
- 1980
- Linear Algebra and Its Applications
On functions which preserve the class of Stieltjes matrices
- Charles A. Micchelli
- R. Willoughby
- 1979
- Linear Algebra and Its Applications
The inverse M-matrix problem
- R. Willoughby
- 1977
- Linear Algebra and Its Applications