2-knots with solvable group [PDF]
We complete the TOP classification of 2-knots with torsion-free, solvable knot group by showing that fibred 2-knots with closed fibre the Hantzsche-Wendt flat 3-manifold $HW$ are not reflexive, while every fibred 2-knot with closed fibre a $\mathbb{N}il ...
Hillman, Jonathan A.
core +4 more sources
Topological loops with solvable multiplication groups of dimension at most six are centrally nilpotent [PDF]
The main result of our consideration is the proof of the centrally nilpotency of class two property for connected topological proper loops $L$ of dimension $\le 3$ which have an at most six-dimensional solvable indecomposable Lie group as their ...
Agota Figula, Ameer Al-Abayechi
doaj +3 more sources
Some remarks on unipotent automorphisms [PDF]
An automorphism $\alpha$ of the group $G$ is said to be $n$-unipotent if $[g,_n\alpha]=1$ for all $g\in G$. In this paper we obtain some results related to nilpotency of groups of $n$-unipotent automorphisms of solvable groups.
Orazio Puglisi, Gunnar Traustason
doaj +1 more source
Some criteria for solvability and supersolvability [PDF]
Denote by $ G $ a finite group, by $ {\rm hsn}(G) $ the harmonic mean Sylow number (eliminating the Sylow numbers that are one) in $G$ and by $ {\rm gsn}(G) $ the geometric mean Sylow number (eliminating the Sylow numbers that are one) in $G$.
Zohreh Habibi, Masoomeh Hezarjaribi
doaj +1 more source
Characterizations of Fitting p-Groups whose Proper Subgroups are Solvable [PDF]
This work continues the study of infinitely generated groups whose proper subgroups are solvable and in whose homomorphic images normal closures of finitely generated subgroups are residually nilpotent. In [4], it has been shown that such a group, if not
A.O. Asar
doaj +1 more source
Corrigendum to: “Characterizations of Fitting p-Groups whose Proper Subgroups are Solvable” [PDF]
The paper entitled "Characterizations of Fitting p-Groups whose Proper Subgroups are Solvable" (Adv. Group Theory Appl. 3 (2017), 31-53) contains a serious error. The proof of Lemma 2.8 relating to p=3 is false.
A.O. Asar
doaj +1 more source
Corrigendum II to: “Characterization of Fitting p-groups whose proper subgroups are solvable” [PDF]
Unfortunately “Corrigendum to Characterizations of Fitting p-groups whose proper subgroups are solvable” contains an error in the conclusion part of Lemma 2.1 (c).
A.O. Asar
doaj +1 more source
A note on finite groups with the indice of some maximal subgroups being primes [PDF]
The Theorem 12 in [A note on $p$-nilpotence and solvability of finite groups, J. Algebra 321 (2009) 1555--1560.] investigated the non-abelian simple groups in which some maximal subgroups have primes indices. In this note we show that this
Cui Zhang
doaj +1 more source
SOLVABILITY OF FREE PRODUCTS, CAYLEY GRAPHS AND COMPLEXES [PDF]
In this paper, we verify the solvability of free product of finite cyclic groups with topological methods. We use Cayley graphs and Everitt methods to construct suitable 2-complexes corresponding to the presentations of groups and their commutator ...
Hanieh Mirebrahimi, Fatemeh Ghanei
doaj +1 more source
Finite non-solvable groups with few 2-parts of co-degrees of irreducible characters [PDF]
For a character $ \chi $ of a finite group $ G $, the number $ \chi^c(1)=\frac{[G:{\rm ker}\chi]}{\chi(1)} $ is called the co-degree of $ \chi $. Let ${\rm Sol}(G)$ denote the solvable radical of $G$.
Neda Ahanjideh
doaj +1 more source

