syten::Krylov::ClassicImpl Namespace Reference

Contains the classic Krylov implementation and helper functions. More...

Classes
struct	Classic
	The ClassicKrylov struct encapsulates the Lanczos algorithm. Template Parameters are: More...
struct	EigenSolver
	The EigenSolver struct solves matrices for their eigenvalues and eigenvectors. More...
struct	ExponentialSolver
	The ExponentialSolver struct solves exp(prefactor*mat)*vec. More...
struct	KrylovError
	Thrown on serious errors encountered in Krylov which do not allow returning an even approximate result. More...
struct	NoOrthoMat
	The NoOrthoMat struct the default behaviour of Lanczos: do not orthonormalize at all. More...
struct	OrthoMat
	The OrthoMat struct implements an orthonormalization that is not 'in place' of the krylov vectors, but affects the Hamiltonian matrix <f|H|f> and thus optimizes for the number of additions see arxiv:1203.2523v3. More...
struct	ReorthoMat
	The ReorthoMat struct provides orthonormalization in case the overlaps grow over SYTEN_SMALL_THRESHOLD. More...
struct	StandardMat
	The StandardMat struct provides orthogonalisation via the standard orthogonalise() functionality specialisable for each class. More...

Detailed Description

Contains the classic Krylov implementation and helper functions.