Let G be a permutation group of a set Ω and k be a positive integer. The k-closure of G is the greatest (w.r.t. inclusion) subgroup G(k) in Sym(Ω) which has the same orbits as has G under the componentwise action on the set Ωk. It is proved that the k-closure of a finite nilpotent group coincides with the direct product of k-closures of all of its Sylow subgroups.
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Translated from Algebra i Logika, Vol. 60, No. 2, pp. 231-239, March-April, 2021. Russian https://doi.org/10.33048/alglog.2021.60.208.
Supported by Mathematical Center in Akademgorodok, Agreement with RF Ministry of Education and Science No. 075-15-2019-1613.
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Churikov, D.V. Structure of k-Closures of Finite Nilpotent Permutation Groups. Algebra Logic 60, 154–159 (2021). https://doi.org/10.1007/s10469-021-09637-9
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DOI: https://doi.org/10.1007/s10469-021-09637-9