Results 11 to 20 of about 46,068 (245)

Towards semi-classical analysis for sub-elliptic operators

open access: yesBruno Pini Mathematical Analysis Seminar, 2022
We discuss the recent developments of semi-classical and micro-local analysis in the context of nilpotent Lie groups and for sub-elliptic operators.
Véronique Fischer
doaj   +1 more source

On n-Nilpotent Groups and n-Nilpotency of n-Abelian Groups [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
The concept of n-nilpotent groups was introduced by Moghaddam and Mashayekhy in 1991 which is in a way a generalized version of the notion of nilpotent groups.
Azam Pourmirzaei, Yaser Shakourie
doaj   +1 more source

On Nilpotent Multipliers of Pairs of Groups [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
In this paper, we determine the structure of the nilpotent multipliers of all pairs (G,N) of finitely generated abelian groups where N admits a complement in G. Moreover, some inequalities for the nilpotent multipliers of pairs of finite groups and their
Azam Hokmabadi   +2 more
doaj   +1 more source

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

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

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

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

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

Generalized Analogs of the Heisenberg Uncertainty Inequality [PDF]

open access: yes, 2015
We investigate locally compact topological groups for which a generalized analogue of Heisenberg uncertainty inequality hold. In particular, it is shown that this inequality holds for $\mathbb{R}^n \times K$ (where $K$ is a separable unimodular locally ...
Bansal, Ashish, Kumar, Ajay
core   +2 more sources

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