Results 301 to 310 of about 69,983 (325)
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Commutativity of Rings with Constraints on Commutators, II
Results in Mathematics, 2000[For part I see ibid. 5, 123-131 (1985; Zbl 0606.16023).] The author proves commutativity of an associative ring \(R\) satisfying one of the following conditions: (1) for each \(x,y\in R\) there exists a co-monic polynomial \(p(t)\in tZ[t]\), such that \([x,y]=[x,y](p(xy)-p(yx))\); (2) for each \(x,y\in R\) there exist \(p(t),q(t)\in tZ[t]\) with \(q(t)
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The Unified Theory for the Necessity of Bounded Commutators and Applications
Journal of Geometric Analysis, 2017This paper gives unified criterions on the necessity of bounded commutators in linear and multilinear settings. Our results relax the restriction of Banach spaces in previous results to quasi-Banach spaces and extend $$BMO(\mathbb {R}^n)$$BMO(Rn) to the ...
Weichao Guo, Jiali Lian, Huo-xiong Wu
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A characterization of BMO in terms of endpoint bounds for commutators of singular integrals
Israel Journal of Mathematics, 2018We provide a characterization of BMO in terms of endpoint boundedness of commutators of singular integrals. In particular, in one dimension, we show that ∥b∥BMO ≃ B, where B is the best constant in the endpoint L log L modular estimate for the commutator
Natalia Accomazzo
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Sparse and weighted estimates for generalized Hörmander operators and commutators
Monatshefte für Mathematik (Print), 2017In this paper a pointwise sparse domination for generalized Hörmander and also for iterated commutators with those operators is provided generalizing the sparse domination result in Lerner et al. (Adv Math 319:153–181, 2017).
Gonzalo H. Ibañez-Firnkorn +1 more
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Fractional maximal function and its commutators on Orlicz spaces
, 2018In this paper, we find necessary and sufficient conditions for the boundedness of fractional maximal operator $$M_{\alpha }$$Mα on Orlicz spaces. As an application of this results we consider the boundedness of fractional maximal commutator $$M_{b,\alpha
V. Guliyev, F. Deringoz, S. G. Hasanov
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The Mathematical Gazette, 1947
We prove some theorems on commutative involutions in a “real” projective geometry in which cobasal homographie ranges may have 0, 1 or 2 self-corresponding points (and therefore a conic and a general line in its plane have 0, 1 or 2 points of intersection).
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We prove some theorems on commutative involutions in a “real” projective geometry in which cobasal homographie ranges may have 0, 1 or 2 self-corresponding points (and therefore a conic and a general line in its plane have 0, 1 or 2 points of intersection).
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Commute Replacement and Commute Displacement
Transportation Research Record: Journal of the Transportation Research Board, 2008Working by telecommunication has been the subject of research attention in transportation studies for many years. Particular consideration has been given to occasional working from home (home working) by (full-time, paid) employees who represent a tangible removal of commute trips on days that people work from home.
Glenn Lyons, Hebba Haddad
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Commutators of Cauchy-Szego type integrals for domains in C^n with minimal smoothness
, 2021X. Duong +4 more
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Commutativity of rings with constraints on commutators
2012This 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.
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To Commute or Not Commute, the Homesteader’s Dilemma
Great Plains Quarterly, 2018After a long hiatus, scholars are reassessing the Homestead Act of 1862. Most scholars see the Act as a failure, partly because they believe its operation involved massive fraud, for which they blame its “commutation” clause as a chief reason. This article provides a fresh look at homesteading commutations, reframing the question to consider under what
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