Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Evdokimov, Sergei"'
Autor:
Evdokimov, Sergei Ivanovich1 (AUTHOR) eva-ser@mail.ru, Golikov, Nikolay S.2 (AUTHOR) golikov_ns@pers.spmi.ru, Pryalukhin, Alexey F.2 (AUTHOR) golikov_ns@pers.spmi.ru, Kondratiev, Viktor V.3 (AUTHOR) v.kondratiev@igc.irk.ru, Mishedchenko, Anatolii4 (AUTHOR) a.a.mishedchenko@mospolytech.ru, Kuzina, Alexandra Vl.5 (AUTHOR) 1314598@mail.ru, Bryukhanova, Natalia Nikolaevna3 (AUTHOR) nnb@igc.irk.ru, Karlina, Antonina I.6 (AUTHOR) karlinat@mail.ru
Publikováno v:
Minerals (2075-163X). Jan2024, Vol. 14 Issue 1, p108. 22p.
Autor:
Evdokimov, Sergei Ivanovich1 (AUTHOR) eva-ser@mail.ru, Golikov, Nikolay S.2 (AUTHOR) golikov_ns@pers.spmi.ru, Zadkov, Denis A.2 (AUTHOR) golikov_ns@pers.spmi.ru, Voitovich, Elena V.3 (AUTHOR) e.voitovich@mail.ru, Kondratiev, Viktor V.4 (AUTHOR) imz@mail.ru, Petrovskiy, Aleksey A.4 (AUTHOR) begimotus@mail.ru, Konyukhov, Vladimir Yu.5 (AUTHOR) konyukhov_vyu@mail.ru, Gladkikh, Vitaliy A.6 (AUTHOR) vgladkich_87@mail.ru
Publikováno v:
Minerals (2075-163X). Jan2024, Vol. 14 Issue 1, p88. 22p.
Publikováno v:
Algebra Analiz, 29, No.4, 46--53 (2017) (MR3708863)
Given a prime $p$, we construct a permutation group containing at least $p^{p-2}$ non-conjugated regular elementary abelian subgroups of order $p^3$. This gives the first example of a permutation group with exponentially many non-conjugated regular s
Externí odkaz:
http://arxiv.org/abs/1609.08467
Autor:
Evdokimov, Sergei, Ponomarenko, Ilya
Publikováno v:
Algebra and Analysis, 28, No. 1 (2016), 46-65
A Schur ring (S-ring) over a group $G$ is called separable if every of its similaritities is induced by isomorphism. We establish a criterion for an S-ring to be separable in the case when the group $G$ is cyclic. Using this criterion, we prove that
Externí odkaz:
http://arxiv.org/abs/1501.06534
Autor:
Evdokimov, Sergei
In dieser Arbeit werden die Mšglichkeiten sicherer Ausgliederung von Datenbanken und inhaltsbasiertem Routing an einen nicht voll vertrauenswŸrdigen Dienstanbieter betrachtet. Wir untersuchen die Grenzen der Sicherheit, die in diesem Szenario errei
Externí odkaz:
http://edoc.hu-berlin.de/18452/16473
Autor:
Evdokimov, Sergei, Ponomarenko, Ilya
Publikováno v:
Journal of Algebra and Its Applications, {\bf 15}, No. 4 (2016), Article ID 1650068, 49 pp
Let $G$ be a finite group. There is a natural Galois correspondence between the permutation groups containing $G$ as a regular subgroup, and the Schur rings (S-rings) over~$G$. The problem we deal with in the paper, is to characterize those S-rings t
Externí odkaz:
http://arxiv.org/abs/1404.5826
Publikováno v:
Communications Algebra, vol. 44, No.1 (2016), 101-117
A finite group $G$ is called a Schur group, if any Schur ring over $G$ is associated in a natural way with a subgroup of $Sym(G)$ that contains all right translations. Recently, the authors have completely identified the cyclic Schur groups. In this
Externí odkaz:
http://arxiv.org/abs/1309.0989
Publikováno v:
St. Petersburg Math. J. 25 (2014), no. 5, 755-773
A finite group $G$ is called a Schur group, if any Schur ring over $G$ is the transitivity module of a permutation group on the set $G$ containing the regular subgroup of all right translations. It was proved by R. P\"oschel (1974) that given a prime
Externí odkaz:
http://arxiv.org/abs/1111.5216
Autor:
Evdokimov, Sergei, Ponomarenko, Ilya
Publikováno v:
St. Petersburg Math. J. 24 (2013), no. 3, 431-460
The generalized wreath product of permutation groups is introduced. By means of it we study the schurity problem for S-rings over a cyclic group $G$ and the automorphism groups of them. Criteria for the schurity and non-schurity of the generalized wr
Externí odkaz:
http://arxiv.org/abs/1012.5393
Autor:
Evdokimov, Sergei, Ponomarenko, Ilya
Publikováno v:
Beitr. Algebra Geom. 55 (2014), no. 1, 105-138
The recently developed theory of Schur rings over a finite cyclic group is generalized to Schur rings over a ring R being a product of Galois rings of coprime characteristics. It is proved that if the characteristic of R is odd, then as in the cyclic
Externí odkaz:
http://arxiv.org/abs/0912.1559