Implements matrix-vector multiplication with nearfield part of H-matrix.

#include <TNearfieldMulVec.hh>

Inheritance diagram for TNearfieldMulVec:

Public Member Functions
virtual bool	is_complex () const
	return true, if field type is complex

virtual bool	is_self_adjoint () const
	return true, of operator is self adjoint

virtual void	apply (const TVector x, TVector y, const matop_t op=apply_normal) const

virtual void	apply_add (const real alpha, const TVector x, TVector y, const matop_t op=apply_normal) const

virtual void	apply_add (const real alpha, const BLAS::Vector< real > &x, BLAS::Vector< real > &y, const matop_t op=apply_normal) const

virtual size_t	domain_dim () const
	return dimension of domain

virtual size_t	range_dim () const
	return dimension of range

virtual auto	domain_vector () const -> std::unique_ptr< TVector >
	return vector in domain space

virtual auto	range_vector () const -> std::unique_ptr< TVector >
	return vector in range space

Public Member Functions inherited from TTypeInfo
virtual typeid_t	type () const =0
	return type ID of object

virtual bool	is_type (const typeid_t t) const
	return true if local object is of given type ID t

virtual std::string	typestr () const
	return string representation of type

Member Function Documentation

◆ apply()

virtual

mapping function of linear operator A, e.g. y ≔ A(x). Depending on op, either A, A^T or A^H is applied.

virtual

same as above but only the dimension of the vector spaces is tested, not the corresponding index sets

virtual

mapping function with update: y ≔ y + α A( x ). Depending on op, either A, A^T or A^H is applied.