find the centralizer of a set of permutations
group in which the centralizer is to be found
set of permutations or a single permutation
Important: The group package has been deprecated. Use the superseding command GroupTheory[Centralizer] instead.
This function finds the largest subgroup of the permutation group pg in which every element commutes with every element of s. s need not be contained in pg. The result is returned as an unevaluated permgroup call.
The command with(group,centralizer) allows the use of the abbreviated form of this command.
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