Results 291 to 300 of about 69,983 (325)
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On Commutativity and Strong Commutativity-Preserving Maps
Canadian Mathematical Bulletin, 1994AbstractIf R is a ring and S ⊆ R, a mapping f:R —> R is called strong commutativity- preserving (scp) on S if [x, y] = [f(x),f(y)] for all x,y € S. We investigate commutativity in prime and semiprime rings admitting a derivation or an endomorphism which is scp on a nonzero right ideal.
Bell, Howard E., Daif, Mohamad Nagy
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Commutativity and Homotopy-Commutativity
1964The aim of this section is to show, by means of the methods developed in Chapter 3, that for an associative H-space G there exist maps G× G → G satisfying certain commutativity conditions (Theorem 4.5). As will be explained in Remarks 4.6 this result is related to the work of other authors on homotopy-commutativity.
M. Arkowitz, C. R. Curjel
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Two Weight Commutators on Spaces of Homogeneous Type and Applications
Journal of Geometric Analysis, 2018In this paper, we establish the two weight commutator theorem of Calderón–Zygmund operators in the sense of Coifman–Weiss on spaces of homogeneous type, by studying the weighted Hardy and BMO space for $$A_2$$ A 2 weights and by proving the sparse ...
X. Duong +5 more
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Commutators and the Commutator Subgroup
The American Mathematical Monthly, 1977(1977). Commutators and the Commutator Subgroup. The American Mathematical Monthly: Vol. 84, No. 9, pp. 720-722.
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Commutators of maximal functions on spaces of homogeneous type and their weighted, local versions
Frontiers of Mathematics in China, 2019We obtain the characterizations of commutators of several versions of maximal functions on spaces of homogeneous type. In addition, with the aid of interpolation theory, we provide weighted version of the commutator theorems by establishing new ...
Zunwei Fu, Elodie Pozzi, Qingyan Wu
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On the compactness of oscillation and variation of commutators
Banach Journal of Mathematical Analysis, 2019In this paper, we first establish the weighted compactness result for oscillation and variation associated with the truncated commutator of singular integral operators. Moreover, we establish a new CMO(Rn)\documentclass[12pt]{minimal} \usepackage{amsmath}
Weichao Guo +3 more
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Endpoint estimates of linear commutators on Hardy spaces over spaces of homogeneous type
Mathematical methods in the applied sciences, 2018Let (X,d,μ) be a metric measure space of homogeneous type in the sense of Coifman and Weiss. In this article, the authors prove that bilinear operators, which are finite combinations of compositions of commutators and Calderón‐Zygmund operators, are ...
Liguang Liu +3 more
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On Abelian Groups with Commutative Commutators of Endomorphisms
Journal of Mathematical Sciences, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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The Mathematical Gazette, 1953
In the Journal of the London Mathematical Society (July, 1951, Vol. 26, pp. 221-8), proofs are given of a theorem of McCoy's and of various results that follow from it. McCoy's theorem establishes the necessary and sufficient condition that a number of n × n matrices should be reducible to triangular form by the same transformation T-1( )T, where the ...
Egan, M. F., Ingram, R. E.
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In the Journal of the London Mathematical Society (July, 1951, Vol. 26, pp. 221-8), proofs are given of a theorem of McCoy's and of various results that follow from it. McCoy's theorem establishes the necessary and sufficient condition that a number of n × n matrices should be reducible to triangular form by the same transformation T-1( )T, where the ...
Egan, M. F., Ingram, R. E.
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Mathematische Annalen, 2017
We present a unified method to obtain unweighted and weighted estimates of linear and multilinear commutators with BMO functions, that is amenable to a plethora of operators and functional settings.
Á. Bényi +4 more
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We present a unified method to obtain unweighted and weighted estimates of linear and multilinear commutators with BMO functions, that is amenable to a plethora of operators and functional settings.
Á. Bényi +4 more
semanticscholar +1 more source