slepc3.21.1 20240426
DSNHEP
Dense NonHermitian Eigenvalue Problem.
Notes
The problem is expressed as A*X = X*Lambda, where A is the input matrix.
Lambda is a diagonal matrix whose diagonal elements are the arguments of
DSSolve(). After solve, A is overwritten with the upper quasitriangular
matrix T of the (real) Schur form, A*Q = Q*T.
In the intermediate state A is reduced to upper Hessenberg form.
Computation of left eigenvectors is supported, but twosided Krylov solvers
usually rely on the related DSNHEPTS.
Used DS matrices
 DS_MAT_A   problem matrix

 DS_MAT_Q   orthogonal/unitary transformation that reduces to Hessenberg form
(intermediate step) or matrix of orthogonal Schur vectors

Implemented methods
See Also
DSCreate(), DSSetType(), DSType
Level
beginner
Location
src/sys/classes/ds/impls/nhep/dsnhep.c
Index of all DS routines
Table of Contents for all manual pages
Index of all manual pages