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permlib
0.2.9
Library for permutation computations
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predicate for the subgroup that arises as the intersection of two given groups More...
#include <group_intersection_predicate.h>
Public Member Functions | |
| GroupIntersectionPredicate (const BSGS< PERM, TRANS > &g, const BSGS< PERM, TRANS > &h) | |
| constructor More... | |
| virtual bool | operator() (const PERM &p) const |
| true iff group element fulfills predicate | |
| virtual bool | childRestriction (const PERM &h, unsigned int i, unsigned long beta_i) const |
| checks if a given group element should not be followed in backtrack search More... | |
| virtual unsigned int | limit () const |
| limit of recursion depth in backtrack search More... | |
Public Member Functions inherited from permlib::SubgroupPredicate< PERM > | |
| virtual | ~SubgroupPredicate () |
| virtual destructor | |
predicate for the subgroup that arises as the intersection of two given groups
| permlib::GroupIntersectionPredicate< PERM, TRANS >::GroupIntersectionPredicate | ( | const BSGS< PERM, TRANS > & | g, |
| const BSGS< PERM, TRANS > & | h | ||
| ) |
constructor
| g | first subgroup of the intersection |
| h | second subgroup of the intersection |
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virtual |
checks if a given group element should not be followed in backtrack search
If returns false then element h that arises at backtrack level i with corresponding base element beta_i will not extend to a "complete" group element that fulfills the predicate
| h | (partial) group element, arising in the backtrack search |
| i | backtrack recursion level |
| beta_i | base element corresponding to current backtrack recursion level |
Implements permlib::SubgroupPredicate< PERM >.
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virtual |
limit of recursion depth in backtrack search
only images of the #{limit()} first base points have to be considered
Implements permlib::SubgroupPredicate< PERM >.