Results 291 to 300 of about 111,899 (306)

Commutativity of rings with constraints on commutators

Results in Mathematics, 1985
Let F denote a commutative ring, \(F\) the corresponding ring of polynomials in two non-commuting indeterminates, and F[X,Y] the ring of polynomials in two commuting indeterminates. A polynomial \(f(X,Y)\in F\) is called admissible if each of its monomials has length at least 3 and f(X,Y) has trivial image under the natural F-algebra map from \(F\) to ...
openaire   +2 more sources

Thermographic fault diagnosis of electrical faults of commutator and induction motors

Engineering applications of artificial intelligence, 2023
A. Głowacz
semanticscholar   +1 more source

The singular integral operator and its commutator on weighted Morrey spaces

, 2016
In this paper, we give necessary conditions and sufficient conditions respectively for the boundedness of the singular integral operator on the weighted Morrey spaces. We observe the phenomenon unique to the case of Morrey spaces; the $$A_q$$Aq-theory by
Shohei Nakamura, Y. Sawano
semanticscholar   +1 more source

Commutator of the quark mass matrices in the standard electroweak model and a measure of maximal CP nonconservation.

Physical Review Letters, 1985
The structure of the quark mass matrices in the standard electroweak model is investigated. The commutator of the quark mass matrices is found to provide a convention independent measure of CP nonconservation.
C. Jarlskog
semanticscholar   +1 more source

Commutator estimates for hölder continuous and bmo-sobolev multipliers

, 2015
We discuss conditions on a function f under which the commutator [P, f ] of a pseudodifferential operator P of order m with the operation of multiplication by f is an operator of order m − r on various function spaces, namely Holder-Zygmund spaces and Lp-
Michael Taylor
semanticscholar   +1 more source

On commutator subgroups of Sylow 2-subgroups of the alternating group, and the commutator width in wreath products

, 2020
R. Skuratovskii
semanticscholar   +1 more source

Acoustic fault analysis of three commutator motors

Mechanical systems and signal processing, 2019
A. Głowacz
semanticscholar   +1 more source

Commutator estimates and the euler and navier‐stokes equations

, 1988
Tosio Kato, G. Ponce
semanticscholar   +1 more source

Commuting in Happyville

2016
This paper presents a spatial model of tax competition in an asymmetric duocentric city in which pollution from commuting is accounted for. Residential location being fixed, agents can chose their workplace and face a tradeo ff between wage and commuting costs - including traffi c-related pollution costs. We contrast the first best solution of a unique
openaire   +4 more sources

Commutativity of rings with constraints on commutators

2012
This paper studies commutativity of rings \(R\) satisfying polynomial identities of the form\break \(x^t[x^n,y]y^r=[x,y^m]y^s\) and three similar forms, where \(n,m,r,s,t\) are suitably-chosen nonnegative integers. Whether the theorems are correct as stated is not clear, but for some \((n,m,r,s,t)\) the proofs given do not work.
openaire   +2 more sources