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Algorithm 19 step-cycle generation

Algorithmus 19. „Step-Cycle” Bildung

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Abstract

For given integerm>1, each step-cycle corresponds to a set of permutations such that the step-cycles constitute a set of equivalence classes on the set of all permutations onm elements.

The algorithm has been used in connection with computations to search for groups consisting of a union of disjoint sets of permutations such that each set of permutations corresponds to a step-cycle, see [2] and [8].

Zusammenfassung

Für eine gegebene ganze Zahlm>1 gibt es zu jeder „step-cycle” eine Menge von Permutationen so daß die „step-cycle” eine Menge von Äquivalenzklassen auf der Menge aller Permutationen vonm Elemente bilden. Der Algorithmus ist in Verbindung mit Berechnungen verwendet worden, um Gruppen darzustellen, die von einer Summe elementfremder Mengen von Permutationen bestehen, so daß jede Menge von Permutationen einer „step-cycle” entspricht.

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References

  1. Beckenbach, E. F.: Applied combinatorial mathematics. New York: 1964.

  2. Mossige, S.: An algorithm for computation of translation invariant groups and the subgroup lattice. University of Bergen, 1972.

  3. Mossige, S.: Generation of permutations in lexicographical order. BITB 10 (1970).

  4. Mossige, S.: Translation sets of permutations: Enumeration of selfcomplementary step-cycles. University of Bergen, 1973.

  5. Ord-Smith, R. T.: Generation of permutation sequences, Part 1. Comp. J.13, 152 (1970).

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  6. Ord-Smith, R. T.: Generation of permutation sequences, Part 2. Comp. J.14, 136 (1971).

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  7. Pager, D.: A number system for permutations. Comm. ACM13, 193 (1970).

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  8. Selmer, E. S.: Doubly periodic arrays. In: Atkin, A. O. L., and B. J. Birch, eds.: Computers in number theory.

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Mossige, S. Algorithm 19 step-cycle generation. Computing 12, 269–272 (1974). https://doi.org/10.1007/BF02293110

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  • DOI: https://doi.org/10.1007/BF02293110

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