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2-knots with solvable group [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2009
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]

open access: greenInternational Journal of Group Theory, 2020
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]

open access: yesInternational Journal of Group Theory, 2020
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]

open access: yesJournal of Mahani Mathematical Research, 2023
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]

open access: yesAdvances in Group Theory and Applications, 2017
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]

open access: yesAdvances in Group Theory and Applications, 2017
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]

open access: yesAdvances in Group Theory and Applications, 2018
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]

open access: yesInternational Journal of Group Theory, 2017
‎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]

open access: yesJournal of Algebraic Systems, 2013
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]

open access: yesAUT Journal of Mathematics and Computing, 2023
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

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