#include <eliminate_metric.hh>

Inheritance diagram for cadabra::eliminate_converter:

Public Member Functions
	eliminate_converter (const Kernel &, Ex &, Ex &, bool)

virtual bool	can_apply (iterator) override

virtual result_t	apply (iterator &) override

Public Member Functions inherited from cadabra::Algorithm
	Algorithm (const Kernel &, Ex &)
	Initialise the algorithm with a reference to the expression tree, but do not yet do anything with this tree. More...

virtual	~Algorithm ()

void	set_progress_monitor (ProgressMonitor *)
	Provide the algorithm with a ProgressMonitor object on which to register (nested) progress information, to be reported out-of-band to a client. More...

result_t	apply_generic (bool deep=true, bool repeat=false, unsigned int depth=0)
	The main entry points for running algorithms, which traverse the tree post-order ('child before parent'). More...

result_t	apply_generic (iterator &, bool deep, bool repeat, unsigned int depth)

result_t	apply_pre_order (bool repeat=false)
	Apply algorithm with alternative traversal: starting from the top node, traverse the tree pre-order ('parent before child') and once the algorithm acts at a given node, do not traverse the subtree below anymore. More...

bool	check_consistency (iterator) const
	Given an expression top node, check index consistency. More...

bool	check_index_consistency (iterator) const

bool	check_degree_consistency (iterator) const
	Given an expression top node, check differential form degree consistency. More...

void	report_progress (const std::string &, int todo, int done, int count=2)

index_iterator	begin_index (iterator it) const

index_iterator	end_index (iterator it) const

unsigned int	number_of_indices (iterator it)

std::string	get_index_set_name (iterator it) const

bool	rename_replacement_dummies (iterator, bool still_inside_algo=false)
	Rename the dummies in the sub-tree starting with head at the given iterator. More...

Public Member Functions inherited from cadabra::IndexClassifier
	IndexClassifier (const Kernel &)

void	fill_index_position_map (Ex::iterator, const index_map_t &, index_position_map_t &) const
	Routines to find and classify all indices in an expression, taking into account sums and products. More...

void	fill_map (index_map_t &, Ex::sibling_iterator, Ex::sibling_iterator) const

void	print_classify_indices (std::ostream &, Ex::iterator) const

void	determine_intersection (index_map_t &one, index_map_t &two, index_map_t &target, bool move_out=false) const
	Determine those indices in 'two' which have a name which is identical to an index name occurring in 'one'. More...

void	classify_add_index (Ex::iterator it, index_map_t &ind_free, index_map_t &ind_dummy) const

void	classify_indices_up (Ex::iterator, index_map_t &ind_free, index_map_t &ind_dummy) const
	Classify indices bottom-up, that is, given a node, it goes up the tree to find. More...

void	classify_indices (Ex::iterator, index_map_t &ind_free, index_map_t &ind_dummy) const
	Classify indices top-down, that is, finds the free indices and all dummy index pairs used in the full subtree below a given node. More...

int	max_numbered_name_one (const std::string &nm, const index_map_t *one) const

int	max_numbered_name (const std::string &, const index_map_t m1, const index_map_t m2=0, const index_map_t m3=0, const index_map_t m4=0, const index_map_t *m5=0) const

Ex	get_dummy (const list_property , const index_map_t m1, const index_map_t m2=0, const index_map_t m3=0, const index_map_t m4=0, const index_map_t m5=0) const

Ex	get_dummy (const list_property *, Ex::iterator) const

Ex	get_dummy (const list_property *, Ex::iterator, Ex::iterator) const

bool	index_in_set (Ex, const index_map_t *) const

void	dumpmap (std::ostream &, const index_map_t &) const

index_map_t::iterator	find_modulo_parent_rel (Ex::iterator it, index_map_t &imap) const
	Find an index in the set, not taking into account index position. More...

Protected Member Functions
virtual bool	is_conversion_object (iterator) const =0

Protected Member Functions inherited from cadabra::Algorithm
int	index_parity (iterator) const

bool	contains (sibling_iterator from, sibling_iterator to, sibling_iterator arg)

void	find_argument_lists (range_vector_t &, bool only_comma_lists=true) const

template<class Iter >
range_vector_t::iterator	find_arg_superset (range_vector_t &, Iter st, Iter nd)

range_vector_t::iterator	find_arg_superset (range_vector_t &, sibling_iterator it)

unsigned int	locate_single_object (Ex::iterator obj_to_find, Ex::iterator st, Ex::iterator nd, std::vector< unsigned int > &store)

bool	locate_object_set (const Ex &objs, Ex::iterator st, Ex::iterator nd, std::vector< unsigned int > &store)

bool	is_single_term (iterator)
	Take a single non-product node in a sum and wrap it in a product node, so it can be handled on the same footing as a proper product. More...

bool	is_nonprod_factor_in_prod (iterator)

bool	prod_wrap_single_term (iterator &)

bool	prod_unwrap_single_term (iterator &)

bool	sum_wrap_single_term (iterator &)

bool	sum_unwrap_single_term (iterator &)

void	force_node_wrap (iterator &, std::string)
	Wrap a term in a product or sum in a node with indicated name, irrespective of its parent (it usually makes more sense to call the safer prod_wrap_single_term or sum_wrap_single_term above). More...

bool	separated_by_derivative (iterator, iterator, iterator check_dependence) const
	Figure out whether two objects (commonly indices) are separated by a derivative operator, as in. More...

void	pushup_multiplier (iterator)

template<class BinaryPredicate >
unsigned int	intersection_number (sibling_iterator, sibling_iterator, sibling_iterator, sibling_iterator, BinaryPredicate) const
	Determine the number of elements in the first range which also occur in the second range. More...

void	node_zero (iterator)

void	node_one (iterator)

void	node_integer (iterator, int)

Private Member Functions
bool	handle_one_index (index_iterator i1, index_iterator i2, iterator fit, sibling_iterator objs)
	See if the conversion which turns index 'i1' into index 'i2' can be applied on the expression, so that it gets a factor in the expression closer to the 'fit' form. More...

Private Attributes
Ex	preferred

index_map_t	ind_dummy

index_map_t	ind_free

bool	redundant

Additional Inherited Members
Public Types inherited from cadabra::Algorithm
typedef Ex::iterator	iterator

typedef Ex::post_order_iterator	post_order_iterator

typedef Ex::sibling_iterator	sibling_iterator

typedef Ex::result_t	result_t

Public Types inherited from cadabra::IndexClassifier
typedef std::multimap< Ex, Ex::iterator, tree_exact_less_for_indexmap_obj >	index_map_t
	A map from a pattern to the position where it occurs in the tree. More...

typedef std::map< Ex::iterator, int, Ex::iterator_base_less >	index_position_map_t
	A map from the position of each index to the sequential index. More...

Static Public Member Functions inherited from cadabra::Algorithm
static unsigned int	number_of_indices (const Properties &, iterator it)

static unsigned int	number_of_direct_indices (iterator it)

static bool	is_termlike (iterator)
	Determines whether the indicated node is 'like a term in a sum'. More...

static bool	is_factorlike (iterator)
	Determines whether the indicated node is 'like a factor in a product'. More...

Public Attributes inherited from cadabra::Algorithm
bool	interrupted

unsigned int	number_of_calls

unsigned int	number_of_modifications

bool	suppress_normal_output

bool	discard_command_node

Stopwatch	index_sw

Stopwatch	get_dummy_sw

Stopwatch	report_progress_stopwatch

Protected Types inherited from cadabra::Algorithm
typedef std::pair< sibling_iterator, sibling_iterator >	range_t
	Finding objects in sets. More...

typedef std::vector< range_t >	range_vector_t

Static Protected Member Functions inherited from cadabra::Algorithm
static bool	less_without_numbers (nset_t::iterator, nset_t::iterator)

static bool	equal_without_numbers (nset_t::iterator, nset_t::iterator)

static bool	compare_ (const str_node &, const str_node &)

Protected Attributes inherited from cadabra::Algorithm
Ex &	tr

ProgressMonitor *	pm

bool	traverse_ldots

Protected Attributes inherited from cadabra::IndexClassifier
const Kernel &	kernel

Constructor & Destructor Documentation

◆ eliminate_converter()

eliminate_converter::eliminate_converter	(	const Kernel &	k,
		Ex &	e,
		Ex &	pref,
		bool	redun
	)

Member Function Documentation

◆ apply()

Algorithm::result_t eliminate_converter::apply ( iterator & it )

overridevirtual

Implements cadabra::Algorithm.

◆ can_apply()

bool eliminate_converter::can_apply ( iterator it )

overridevirtual

Implements cadabra::Algorithm.

◆ handle_one_index()

bool eliminate_converter::handle_one_index	(	index_iterator	i1,
		index_iterator	i2,
		iterator	fit,
		sibling_iterator	objs
	)

private

See if the conversion which turns index 'i1' into index 'i2' can be applied on the expression, so that it gets a factor in the expression closer to the 'fit' form.

The two indices 'i1' and 'i2' are objects on the convertor object, so they need to appear with opposite parent rel in the expression if they are to be applied (if the index position type is 'fixed').

◆ is_conversion_object()

virtual bool cadabra::eliminate_converter::is_conversion_object ( iterator ) const

protectedpure virtual

Implemented in cadabra::eliminate_vielbein, and cadabra::eliminate_metric.

Member Data Documentation

◆ ind_dummy

index_map_t cadabra::eliminate_converter::ind_dummy

private

◆ ind_free

index_map_t cadabra::eliminate_converter::ind_free

private

◆ preferred

Ex cadabra::eliminate_converter::preferred

private

◆ redundant

bool cadabra::eliminate_converter::redundant

private

The documentation for this class was generated from the following files:

core/algorithms/eliminate_metric.hh
core/algorithms/eliminate_metric.cc

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ eliminate_converter()

Member Function Documentation

◆ apply()

◆ can_apply()

◆ handle_one_index()

◆ is_conversion_object()

Member Data Documentation

◆ ind_dummy

◆ ind_free

◆ preferred

◆ redundant