PEPSetOperators#

Sets the coefficient matrices associated with the polynomial eigenvalue problem.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetOperators(PEP pep,PetscInt nmat,Mat A[])

Collective

Input Parameters#

  • pep - the polynomial eigensolver context

  • nmat - number of matrices in array A

  • A - the array of matrices associated with the eigenproblem

Notes#

The polynomial eigenproblem is defined as \(P(\lambda)x=0\), where \(\lambda\) is the eigenvalue, \(x\) is the eigenvector, and \(P\) is defined as \(P(\lambda) = A_0 + \lambda A_1 + \dots + \lambda^d A_d\), with \(d\)=nmat-1 (the degree of \(P\)). For non-monomial bases, this expression is different.

See Also#

PEP: Polynomial Eigenvalue Problems, PEPSolve(), PEPGetOperators(), PEPGetNumMatrices(), PEPSetBasis()

Level#

beginner

Location#

src/pep/interface/pepsetup.c

Examples#

src/pep/tutorials/ex40.c
src/pep/tutorials/ex50.c
src/pep/tutorials/ex17.c
src/pep/tutorials/ex16.c
src/pep/tutorials/ex16f.F90
src/pep/tutorials/ex28.c
src/pep/tutorials/ex38.c

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