Results 1 to 10 of about 174,262 (139)

An Engel condition for orderable groups [PDF]

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2014
Let m,n be positive integers, v a multilinear commutator word and w=v^m. We prove that if G is an orderable group in which all w-values are n-Engel, then the verbal subgroup v(G) is locally nilpotent.
Shumyatsky, P., Tortora, A., Tota, M.
core   +5 more sources

Weak Engel Conditions on Linear Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2019
We study several weak Engel conditions on linear groups, starting from the “almost Engel” condition of Khukhro and Shumyatsky. There the groups were Engel modulo certain finite subsets.
B.A.F. Wehrfritz
doaj   +2 more sources

Compact groups with countable Engel sinks

open access: yesBulletin of Mathematical Sciences, 2021
An Engel sink of an element g of a group G is a set ℰ(g) such that for every x ∈ G all sufficiently long commutators [...[[x,g],g],…,g] belong to ℰ(g).
E. I. Khukhro, P. Shumyatsky
doaj   +1 more source

Characterization of Derived Nilpotent (Engel) Lie Ring of Fuzzy Hyperrings by Using Fuzzy Strongly Regular Relations

open access: yesFuzzy Information and Engineering, 2022
In this paper, we determined a new characterisation of the derived nilpotent (Engel) Lie ring of fuzzy hyperrings by fuzzy strongly regular relation [Formula: see text]([Formula: see text]). Moreover, we proved that for a fuzzy hyperring S, the quotient [
E. Mohammadzadeh   +3 more
doaj   +1 more source

PLOTTING ENGEL CURVES FOR COMMODITIES "FOOD" AND "EDUCATION" IN THE CONTEXT OF UKRAINIAN HOUSEHOLDS’ WELL-BEING EVALUATION

open access: yesФінансово-кредитна діяльність: проблеми теорії та практики, 2023
The article is devoted to the adaptation of Engel's curve tools for evaluating the well-being of Ukrainian households. In particular, the assessment of the welfare inequality, observed between households with the lowest equivalent per capita income and ...
Denys Verba   +3 more
doaj   +1 more source

Principles of the toll roads pricing [PDF]

open access: yesArchives of Transport, 2018
In this paper the authors refer to the method of commercial provision of road infrastructure called BOT (build-operate-transfer) under Public-private partnerships (PPPs) scheme.
Piotr Jaworski   +2 more
doaj   +1 more source

Nonparametric IV estimation of shape-invariant Engel curves [PDF]

open access: yes, 2003
This paper concerns the identification and estimation of a shape-invariant Engel curve system with endogenous total expenditure. The shape-invariant specification involves a common shift parameter for each demographic group in a pooled system of Engel
Blundell, R., Chen, X., Kristensen, D.
core   +1 more source

Radical Rings with Engel Conditions

open access: yesJournal of Algebra, 2000
In a ring \(R\) the Lie multiplication and the Lie commutators are defined inductively by \([r,s]=rs-sr\), and \([r_1,\dots,r_{n+1}]=[[r_1,\dots,r_n],r_{n+1}]\). A ring \(R\) is \(n\)-Engel, if \([r,s,\dots,s]=0\) where \(s\) appears exactly \(n\) times.
Amberg, Bernhard, Sysak, Yaroslav P.
openaire   +2 more sources

Visual analysis of high density EEG: As good as electrical source imaging?

open access: yesClinical Neurophysiology Practice, 2020
Objective: In this study, we sought to determine whether visual analysis of high density EEG (HD-EEG) would provide similar localizing information comparable to electrical source imaging (ESI). Methods: HD-EEG (256 electrodes) recordings from 20 patients
Gianpaolo Toscano   +10 more
doaj   +1 more source

An Engel condition with derivation [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
Let R R be a prime ring, L L a noncommutative Lie ideal of R R , and D D a nonzero derivation of R R . If for each x ∈ L x \in L , [ D ( x ) , x
openaire   +1 more source

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