PEPSetBasis#

Specifies the type of polynomial basis used to describe the polynomial eigenvalue problem.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetBasis(PEP pep,PEPBasis basis)

Logically Collective

Input Parameters#

  • pep - the polynomial eigensolver context

  • basis - the type of polynomial basis, see PEPBasis for possible values

Options Database Key#

  • -pep_basis <basis> - Select the basis type

Note#

By default, the coefficient matrices passed via PEPSetOperators() are expressed in the monomial basis, i.e. \(P(\lambda) = A_0 + \lambda A_1 + \lambda^2 A_2 + \dots + \lambda^d A_d\). Other polynomial bases may have better numerical behavior, but the user must then pass the coefficient matrices accordingly.

See Also#

PEP: Polynomial Eigenvalue Problems, PEPSetOperators(), PEPGetBasis(), PEPBasis

Level#

intermediate

Location#

src/pep/interface/pepopts.c

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