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On Some Discrete Subgroups of The Lorentz GroupSome discrete subgroups of the Lorentz group are found using Fedorov’s parametrization by means

On finite groups with Hall normally embedded Schmidt subgroupsA subgroup H of a finite group G is said to be Hall normally embedded in G if there is a normal

On well p-embedded subgroups of finite groupsLet G be a finite group, H a subgroup of G and HsG the subgroup of H genarated by all those

On derived π-length of a finite π-solvable group with supersolvable π-Hall subgroupIt is proved that if π-Hall subgroup is a supersolvable group then the derived π-length of a π

О транзитивности нормальности и связанных с этим темах

Discrete logarithm for nilpotent groups and cryptanalysis of polylinear cryptographic systemWe present an efficient algorithm to compute a discrete logarithm in a finite nilpotent group

Conditionally Permutable Subgroups and Supersolubility of Finite GroupsA subgroups H of a group G is called conditionally permutable (or in brevity, c

Supersolubility of a finite group with normally embedded maximal subgroups in Sylow subgroupsA subgroup A is called seminormal in a group G if there exists a subgroup B such that G = AB and AX

Elementary nets (carpets) over a discrete valuation ring (carpet)over a field). Let R be a discrete valuation ring, K be the field of fractions of R, σ = (σ ij

О перестановочности максимальных подгрупп с подгруппами Шмидта every proper subgroup is nilpotent. We establish sufficient conditions for the p-solvability of a finite

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