permlib  0.2.8
Library for permutation computations
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permlib::partition::SetStabilizerSearch< BSGSIN, TRANSRET > Class Template Reference

subgroup search for a set stabilizer based on partition backtracking More...

#include <set_stabilizer_search.h>

Inheritance diagram for permlib::partition::SetStabilizerSearch< BSGSIN, TRANSRET >:
permlib::partition::RBase< BSGSIN, TRANSRET > permlib::BaseSearch< BSGSIN, TRANSRET >

Public Types

typedef RBase< BSGSIN,
TRANSRET >::PERM 
PERM
- Public Types inherited from permlib::partition::RBase< BSGSIN, TRANSRET >
typedef BaseSearch< BSGSIN,
TRANSRET >::PERM 
PERM
typedef BaseSearch< BSGSIN,
TRANSRET >::TRANS 
TRANS
typedef Refinement< PERM >
::RefinementPtr 
RefinementPtr
typedef RefinementFamily< PERM >
::PartitionPtr 
PartitionPtr
typedef std::list< std::pair
< PartitionPtr, RefinementPtr >
>::const_iterator 
PartitionIt
- Public Types inherited from permlib::BaseSearch< BSGSIN, TRANSRET >
typedef BSGSIN::PERMtype PERM
typedef BSGSIN::TRANStype TRANS
typedef std::list< typename
PERM::ptr > 
PERMlistType

Public Member Functions

 SetStabilizerSearch (const BSGSIN &bsgs, unsigned int pruningLevelDCM)
 constructor
template<class InputIterator >
void construct (InputIterator begin, InputIterator end)
 initializes search
- Public Member Functions inherited from permlib::partition::RBase< BSGSIN, TRANSRET >
 RBase (const BSGSIN &bsgs, unsigned int pruningLevelDCM, bool stopAfterFirstElement=false)
 constructor
void search (BSGS< PERM, TRANSRET > &groupK)
 perform search and store result in groupK
virtual BaseSearch< BSGSIN,
TRANSRET >::PERM::ptr 
searchCosetRepresentative (BSGS< PERM, TRANSRET > &groupK, BSGS< PERM, TRANSRET > &groupL)
 searches for a coset representative if one exists
- Public Member Functions inherited from permlib::BaseSearch< BSGSIN, TRANSRET >
 BaseSearch (const BSGSIN &bsgs, unsigned int pruningLevelDCM, bool stopAfterFirstElement)
 constructor
virtual ~BaseSearch ()
 destructor
bool minOrbit (unsigned long alpha, BSGS< PERM, TRANSRET > &groupK, unsigned int i, unsigned long beta_i) const
 finds minimal elements in an orbit
virtual PERM::ptr searchCosetRepresentative ()
 searches for a coset representative if one exists

Protected Member Functions

virtual unsigned int processNewFixPoints (const Partition &pi, unsigned int backtrackCount)
 callback when a new fix point appears during R-base construction
- Protected Member Functions inherited from permlib::partition::RBase< BSGSIN, TRANSRET >
void construct (SubgroupPredicate< PERM > *pred, RefinementFamily< PERM > *predRefinement)
 constructs an R-base for given predicate and refinement family
virtual const std::vector
< dom_int > & 
subgroupBase () const
 base of the sought subgroup
- Protected Member Functions inherited from permlib::BaseSearch< BSGSIN, TRANSRET >
bool pruneDCM (const PERM &t, unsigned int backtrackLevel, BSGS< PERM, TRANSRET > &groupK, BSGS< PERM, TRANSRET > &groupL)
 try to prune with advanced double coset minimality
bool checkLeaf (unsigned int level)
 true iff level is a leaf level
unsigned int processLeaf (const PERM &t, unsigned int level, unsigned int backtrackLevel, unsigned int completed, BSGS< PERM, TRANSRET > &groupK, BSGS< PERM, TRANSRET > &groupL)
 processes a leaf and adds corresponding element to the generator set of K
void setupEmptySubgroup (BSGS< PERM, TRANSRET > &group) const
 sets up a BSGS structure for an empty group with base subgroupBase()

Additional Inherited Members

- Public Attributes inherited from permlib::BaseSearch< BSGSIN, TRANSRET >
unsigned long m_statNodesVisited
 nodes visited during backtrack search
unsigned long m_statNodesPrunedCosetMinimality
 number of nodes where (simple) double coset minimality pruning was in effect
unsigned long m_statNodesPrunedCosetMinimality2
 number of nodes where advanced double coset minimality pruning with base change was in effect
unsigned long m_statNodesPrunedChildRestriction
 number of nodes where a child constraint pruning was in effect
- Protected Attributes inherited from permlib::partition::RBase< BSGSIN, TRANSRET >
Partition m_partition
 partition to base the backtrack tree on
Partition m_partition2

Detailed Description

template<class BSGSIN, class TRANSRET>
class permlib::partition::SetStabilizerSearch< BSGSIN, TRANSRET >

subgroup search for a set stabilizer based on partition backtracking

Constructor & Destructor Documentation

template<class BSGSIN , class TRANSRET >
permlib::partition::SetStabilizerSearch< BSGSIN, TRANSRET >::SetStabilizerSearch ( const BSGSIN &  bsgs,
unsigned int  pruningLevelDCM 
)

constructor

Parameters
bsgsBSGS of group
pruningLevelDCMlevel up to which expensive double coset minimality pruning is performed; zero to disable

Member Function Documentation

template<class BSGSIN , class TRANSRET >
template<class InputIterator >
void permlib::partition::SetStabilizerSearch< BSGSIN, TRANSRET >::construct ( InputIterator  begin,
InputIterator  end 
)

initializes search

Parameters
beginiterator(unsigned long) begin of the set to be stabilized
enditerator(unsigned long) end of the set to be stabilized

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