Results 11 to 20 of about 425 (188)

Polynomial sequences in discrete nilpotent groups of step 2

open access: yesAdvanced Nonlinear Studies, 2023
We discuss some of our work on averages along polynomial sequences in nilpotent groups of step 2. Our main results include boundedness of associated maximal functions and singular integrals operators, an almost everywhere pointwise convergence theorem ...
Ionescu Alexandru D.   +3 more
doaj   +1 more source

New lower bounds for the number of conjugacy classes in finite nilpotent groups [PDF]

open access: yesInternational Journal of Group Theory, 2022
P‎. ‎Hall's classical equality for the number of conjugacy classes in $p$-groups yields $k(G) \ge (3/2) \log_2 |G|$ when $G$ is nilpotent‎. ‎Using only Hall's theorem‎, ‎this is the best one can do when $|G| = 2^n$‎. ‎Using a result of G.J‎.
Edward A‎. ‎Bertram
doaj   +1 more source

A classification of nilpotent $3$-BCI groups [PDF]

open access: yesInternational Journal of Group Theory, 2019
‎‎Given a finite group $G$ and a subset $Ssubseteq G,$ the bi-Cayley graph $bcay(G,S)$ is the graph whose vertex‎ ‎set is $G times {0,1}$ and edge set is‎ ‎${ {(x,0),(s x,1)}‎ : ‎x in G‎, ‎sin S }$‎.
Hiroki Koike, Istvan Kovacs
doaj   +1 more source

Wielandt′s Theorem and Finite Groups with Every Non-nilpotent Maximal Subgroup with Prime Index

open access: yesJournal of Harbin University of Science and Technology, 2023
In order to give a further study of the solvability of a finite group in which every non-nilpotent maximal subgroup has prime index, the methods of the proof by contradiction and the counterexample of the smallest order and a theorem of Wielandt on the ...
TIAN Yunfeng, SHI Jiangtao, LIU Wenjing
doaj   +1 more source

Groups whose Proper Subgroups of Infinite Rank are Minimax-by-Nilpotent or Nilpotent-by-Minimax [PDF]

open access: yesAdvances in Group Theory and Applications, 2020
Let M denote the class of of soluble-by-finite minimax groups, and N the class of nilpotent groups. The main result states that if G is a group of infinite rank whose proper subgroups of infinite rank are MN-groups, then G is either in MN or it is a ...
Amel Zitouni
doaj   +1 more source

Nilpotent Singer Groups [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2006
Let $N$ be a nilpotent group normal in a group $G$. Suppose that $G$ acts transitively upon the points of a finite non-Desarguesian projective plane ${\cal P}$. We prove that, if ${\cal P}$ has square order, then $N$ must act semi-regularly on ${\cal P}$.
openaire   +4 more sources

Nilpotent Groups [PDF]

open access: yesFormalized Mathematics, 2010
Nilpotent Groups This article describes the concept of the nilpotent group and some properties of the nilpotent groups.
Li, Dailu, Liang, Xiquan, Men, Yanhong
openaire   +2 more sources

Residual Properties of Nilpotent Groups

open access: yesМоделирование и анализ информационных систем, 2015
Let π be a set of primes. Recall that a group G is said to be a residually finite π-group if for every nonidentity element a of G there exists a homomorphism of the group G onto some finite π-group such that the image of the element a differs from 1.
D. N. Azarov
doaj   +1 more source

Pseudocomplete nilpotent groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
Semicomplete nilpotent groups, that is, nilpotent groups with no outer automorphisms, have been of interest for many years. In this paper pseudocomplete nilpotent groups, that is, nilpotent groups in which the automorphism group and the inner automorphism group are isomorphic (not equal), are constructed.
openaire   +2 more sources

Recognising nilpotent groups

open access: yesJournal of Algebra, 2006
Let \(G\) be a finite group and order the set of sizes of conjugacy classes of \(G\) decreasingly to obtain what is called the conjugate type vector of \(G\). The authors show by examples that if \(H\) is nilpotent and if \(G\) and \(H\) have the same conjugate type vector, then \(G\) is not necessarily nilpotent.
Camina, A.R., Camina, R.D.
openaire   +2 more sources

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