Results 51 to 60 of about 10,475 (236)

k-quasi-homogeneous Toeplitz operators on pluriharmonic Bergman space of the unit ball

open access: yes四川大学学报. 自然科学版, 2019
In this paper, we study some basic properties of k-quasi-homogeneous Toeplitz operators on the pluriharmonic Bergman space of the unit ball, and obtain the symmetric properties of the commutator and semi-commutator consisting of two such operators.
DAI Xin, DONG Xing-Tang, ZHANG Ying-Ying
doaj  

Weighted estimates of higher order commutators generated by BMO-functions and the fractional integral operator on Morrey spaces

open access: yesJournal of Inequalities and Applications, 2016
The purpose of this paper is to investigate the weighted estimates of commutators generated by BMO-functions and the fractional integral operator on Morrey spaces. The main result generalizes the Sawano, Sugano, and Tanaka result to a weighted setting.
Takeshi Iida
doaj   +1 more source

Some estimates for commutators of the fractional maximal function on stratified Lie groups

open access: yesJournal of Inequalities and Applications, 2023
In this paper, the main aim is to consider the boundedness of the nonlinear commutator [ b , M α ] $[b, M_{\alpha}]$ and the maximal commutator M α , b $M_{\alpha ,b}$ on the Lebesgue spaces over some stratified Lie group G $\mathbb{G}$ when the symbol b
Jianglong Wu, Wenjiao Zhao
doaj   +1 more source

Finitely valued commutator sequences [PDF]

open access: yes, 2017
If x and y are elements in the group G, then we denote their commutator by x o y = x-1y-1 = x-1xy; and x o G is the set of all commutators x o g with g G. A G-commutator sequence is a series of elements ci G with c1 + 1 ci O G. Slightly generalizing well
Baer, Reinhold
core  

On commutator socle-regular Abelian p-groups [PDF]

open access: yes, 2014
We define the notion of a commutator socle-regular Abelian p-group. After establishing some crucial properties of commutator socle-regularity, we investigate its relationship with socle-regularity, strong socle-regularity and projection socle ...
Danchev, Peter, Goldsmith, Brendan
core   +1 more source

Neutrino Oscillation in a Minimal Length Spacetime

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We investigate how neutrino oscillations are modified in a non‐commutative spacetime characterized by a minimal length scale, described by the Quesne–Tkachuk algebra. By incorporating the algebra's deformation parameter β$$ \beta $$ into the effective neutrino mass, we derive the two‐flavor oscillation probability in this non‐commutative ...
Luísa Nadal‐Camargo   +3 more
wiley   +1 more source

Large characteristic subgroups satisfying multilinear commutator identities

open access: yes, 2023
The transformation of normal subgroups of finite index or Corank, satisfying a multilinear commutator identity into characteristic subgroups is presented. The reduction to the nilpotent groups is carried out by using Hall-Higman-type theorems.
Evgeny Khukhro (17161393)   +1 more
core   +4 more sources

On Commuting and Noncommuting Complexes

open access: yesJournal of Algebra, 2001
In this paper we study various simplicial complexes associated to the commutative structure of a finite group G. We define NC(G) (resp. C(G)) as the complex associated to the poset of pairwise non-commuting (resp. commuting) sets in G. We observe that NC(G) has only one positive dimensional connected component, which we call BNC(G), and we prove that ...
Pakianathan, Jonathan, Yalçın, Ergün
openaire   +3 more sources

Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley   +1 more source

Lipschitz estimates for commutators of singular integral operators associated with the sections

open access: yesJournal of Inequalities and Applications, 2017
Let H be Monge-Ampère singular integral operator, b ∈ L i p F β $b\in Lip_{\mathcal{F}}^{\beta}$ , and 1 / q = 1 / p − β $1/q=1/p-\beta$ . It is proved that the commutator [ b , H ] $[b,H]$ is bounded from L p ( R n , d μ ) $L^{p}(\mathbb{R}^{n},d\mu ...
Guangqing Wang, Jiang Zhou
doaj   +1 more source

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