Results 301 to 310 of about 70,693 (320)
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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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Economic Theory, 2017 We consider the role of a nonlinear commuting cost function in determination of the equilibrium commuting pattern where all agents are mobile. Previous literature has considered only linear commuting cost, where in equilibrium, all workers are indifferent about their workplace location.
Marcus Berliant, Takatoshi Tabuchi
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American Journal of Mathematics, 1952
A mathematical formulation of the famous Heisenberg uncertainty principle is that a certain pair of linear transformations P and Q satisfies, after suitable normalizations, the equation PQ - QP = 1. It is easy enough to produce a concrete example of this behavior; consider L2(-∞, +∞) and let P and Q be the differentiation transformation and the ...
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A mathematical formulation of the famous Heisenberg uncertainty principle is that a certain pair of linear transformations P and Q satisfies, after suitable normalizations, the equation PQ - QP = 1. It is easy enough to produce a concrete example of this behavior; consider L2(-∞, +∞) and let P and Q be the differentiation transformation and the ...
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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
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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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To Commute or Not Commute, the Homesteader’s Dilemma [PDF]
Great Plains Quarterly, 2018 After 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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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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Commutator design for commutator fusing
1973 EIC 11th Electrical Insulation Conference, 1973One of the biggest problems encountered in the production of universal or D.C. electric motors has been the method and practice of joining the armature's coil wires to the commutator. For years most manufactuers either soft soldered or brazed the coil wires to the commutator.
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