base class for HCA generator functions using row/column permutations More...

#include <TLowRankApx.hh>

Inheritance diagram for TPermHCAGeneratorFn< T_val >:

Public Member Functions
	TPermHCAGeneratorFn (const TPermutation row_perm_i2e, const TPermutation col_perm_i2e)

virtual void	integrate_dx (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const

virtual void	integrate_dy (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const

virtual void	integrate_dx_perm (const std::vector< idx_t > &idxs, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0

virtual void	integrate_dy_perm (const std::vector< idx_t > &idxs, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0

Public Member Functions inherited from THCA< T >::TGeneratorFn
virtual bool	is_complex () const
	indicate complex nature of function

virtual value_t	eval (const T3Point &x, const T3Point &y) const =0

virtual void	integrate_dx (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0

virtual void	integrate_dy (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0

Detailed Description

template<typename T_val>
class HLIB::TPermHCAGeneratorFn< T_val >

     Provides basic permutation management for evaluating the integrals
     over the derivatives of the kernel generator function.

Constructor & Destructor Documentation

◆ TPermHCAGeneratorFn()

TPermHCAGeneratorFn	(	const TPermutation *	row_perm_i2e,
		const TPermutation *	col_perm_i2e
	)

inline

constructor

order defines (maximal) quadrature order for evaluating the integrals

Member Function Documentation

◆ integrate_dx()

virtual void integrate_dx	(	const TIndexSet &	is,
		const std::vector< T3Point > &	pts,
		BLAS::Matrix< value_t > &	matrix
	)		const

inlinevirtual

Evaluate \( \int \phi_i(x) D_x \gamma(x, y_{l}) dx\) for i ∈ is and points \( y_{l} \) defined by pts. Store results in matrix at index (i,l).

◆ integrate_dx_perm()

virtual void integrate_dx_perm	(	const std::vector< idx_t > &	idxs,
		const std::vector< T3Point > &	pts,
		BLAS::Matrix< value_t > &	matrix
	)		const

pure virtual

Evaluate \( \int \phi_i(x) D_x \gamma(x, y_{l}) dx\) for i ∈ is and points \( y_{l} \) defined by pts. Indices in idxs are given in external order.

Implemented in TInvarBasisQuadHCAGenFn< T_ansatzsp, T_testsp, T_val >, TInvarBasisQuadHCAGenFn< T_ansatzsp, T_testsp, real >, TInvarBasisQuadHCAGenFn< T_ansatzsp, T_testsp, complex >, TQuadHCAGenFn< T_ansatzsp, T_testsp, T_val >, TQuadHCAGenFn< T_ansatzsp, T_testsp, real >, and TQuadHCAGenFn< T_ansatzsp, T_testsp, complex >.

◆ integrate_dy()

virtual void integrate_dy	(	const TIndexSet &	is,
		const std::vector< T3Point > &	pts,
		BLAS::Matrix< value_t > &	matrix
	)		const