Journal of Siberian Federal University. Mathematics & Physics / On a Question about Generalized Congruence Subgroups

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2018 11 (1)
Authors
Koibaev, Vladimir A.
Contact information
Koibaev, Vladimir A.: North-Ossetian State University Vatutin, 44-46, Vladikavkaz, 362025 Southern Mathematical Institute VSC RAS Markus, 22, Vladikavkaz, 362027;
Keywords
Carpets; carpet groups; nets; elementary nets; allowable elementary nets; closed elementary nets; elementary net group; transvection
Abstract

Elementary net (carpet) δ = (δ ij) is called admissible (closed) if the elementary net (carpet) group E(δ) does not contain a new elementary transvections. This work is related to the problem proposed by Y.N.Nuzhin in connection with the problem 15.46 from the Kourovka notebook proposed by V.M.Levchuk (admissibility (closure) of the elementary net (carpet) δ = (δij) over a field K). An example of field K and the net δ = (δij) of order n over the field K are presented so that subgroup ⟨tij(δij); tji(δji)⟩ is not coincident with group E(δ) ∩ ⟨tij(K); tji(K)⟩

Pages
66–69
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/68750