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Questions related to permutations, bijections from a finite (or sometimes infinite) set to itself.
12
votes
2
answers
289
views
Permutation search problems with no known $o(n!)$ algorithms
I am looking for problems for whose solution no known subfactorial algorithms are known. I am particularly interested in questions of isomorphism; that is, is there a permutation that converts one obj …
1
vote
2
answers
287
views
Practical permutation search problems resilient to backtrack techniques
$ algorithms; to which one-way functions over a space of permutations gives a problem with no $o(n!)$ solution (discussed in the comments). …