permlib
0.2.9
Library for permutation computations
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coset-type predicate for group elements that map one set of points onto another given set of points More...
#include <set_image_predicate.h>
Public Member Functions | |
template<class InputIterator > | |
SetImagePredicate (InputIterator deltaBegin, InputIterator deltaEnd, InputIterator gammaBegin, InputIterator gammaEnd) | |
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... | |
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virtual | ~SubgroupPredicate () |
virtual destructor | |
coset-type predicate for group elements that map one set of points onto another given set of points
holds for a such that
for two given sets
permlib::SetImagePredicate< PERM >::SetImagePredicate | ( | InputIterator | deltaBegin, |
InputIterator | deltaEnd, | ||
InputIterator | gammaBegin, | ||
InputIterator | gammaEnd | ||
) |
constructor
deltaBegin | begin iterator for source list of points (unsigned long) mapped to be onto target |
deltaEnd | end iterator for source list of points (unsigned long) mapped to be onto target |
gammaBegin | begin iterator for target list of points (unsigned long) |
gammaEnd | end iterator for target list of points (unsigned long) |
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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 >.