sift

element_type libsemigroups::SchreierSims::sift(const_element_reference x)

Returns a copy of x that has been sifted through the stabiliser chain.

Return

A value of type SchreierSims::element_type.

Parameters

• x: a const reference to a group element.

Exceptions

• LibsemigroupsException: if the degree of x is not equal to the first template parameter N.