Results 51 to 60 of about 4,168 (159)

On n-dependent groups and fields

open access: yes, 2015
First, an example of a 2-dependent group without a minimal subgroup of bounded index is given. Second, all infinite n-dependent fields are shown to be Artin-Schreier closed.
Hempel, Nadja
core   +1 more source

Some topological properties of residually Černikov groups [PDF]

open access: yesGlasgow Mathematical Journal, 1982
In this paper we shall indicate how to generalise the concept of a cofinite group (see [7]). We recall that any residually finite group can be made into a topological group by taking as a basis of neighbourhoods of the identity precisely the normal subgroups of finite index.
openaire   +2 more sources

Parallel Anisotropic Unstructured Grid Adaptation [PDF]

open access: yes
Computational Fluid Dynamics (CFD) has become critical to the design and analysis of aerospace vehicles. Parallel grid adaptation that resolves multiple scales with anisotropy is identified as one of the challenges in the CFD Vision 2030 Study to ...
Chrisochoides, Nikos   +4 more
core   +1 more source

Groups whose proper subgroups are Baer-by-Chernikov or Baer-by-(finite rank)

open access: yesOpen Mathematics, 2011
Abstract Our main result is that a locally graded group whose proper subgroups are Baer-by-Chernikov is itself Baer-by-Chernikov. We prove also that a locally (soluble-by-finite) group whose proper subgroups are Baer-by-(finite rank) is itself Baer-by-(finite rank) if either it is locally of finite rank but not locally finite or it has ...
Badis, Abdelhafid, Trabelsi, Nadir
openaire   +1 more source

Groups with Chernikov conjugacy classes in which Sylow permutability is a transitive relation

open access: yesJournal of Algebra, 2010
A subgroup \(H\) of a group \(G\) is called permutable (or quasinormal) if \(HK=KH\) for all subgroups \(K\) of \(G\). A group \(G\) is called a PT-group if permutability is a transitive relation. A subgroup \(H\) is called S-permutable if \(HS=SH\) for every Sylow \(p\)-subgroup \(S\) of \(G\) and for each prime \(p\).
Muñoz-Escolano, J.M.   +2 more
openaire   +1 more source

Mekler's construction and generalized stability

open access: yes, 2018
Mekler's construction gives an interpretation of any structure in a finite relational language in a group (nilpotent of class $2$ and exponent $p>2$, but not finitely generated in general).
Chernikov, Artem, Hempel, Nadja
core  

Finite groups and Lie rings with an automorphism of order $2^n$

open access: yes, 2015
Suppose that a finite group $G$ admits an automorphism $\varphi $ of order $2^n$ such that the fixed-point subgroup $C_G(\varphi ^{2^{n-1}})$ of the involution $\varphi ^{2^{n-1}}$ is nilpotent of class $c$.
Khukhro, E. I.   +2 more
core  

New l-Rhamnose-Binding Lectin from the Bivalve Glycymeris yessoensis: Purification, Partial Structural Characterization and Antibacterial Activity. [PDF]

open access: yesMar Drugs, 2023
Mizgina TO   +8 more
europepmc   +1 more source

Tension-free thyroidectomy (medial thyroidectomy)-a prospective study: surgical technique and results of 259 operations. [PDF]

open access: yesGland Surg, 2023
Sleptsov I   +11 more
europepmc   +1 more source

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