Results 301 to 310 of about 64,616 (316)

The Unified Theory for the Necessity of Bounded Commutators and Applications

Journal of Geometric Analysis, 2017
This 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
semanticscholar   +1 more source

A characterization of BMO in terms of endpoint bounds for commutators of singular integrals

Israel Journal of Mathematics, 2018
We 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
semanticscholar   +1 more source

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
openaire   +1 more source

Sparse and weighted estimates for generalized Hörmander operators and commutators

Monatshefte für Mathematik (Print), 2017
In 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, Israel P. Rivera-R'ios   +1 more
semanticscholar   +1 more source

Fractional maximal function and its commutators on Orlicz spaces

, 2018
In 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
semanticscholar   +1 more source

Commutator design for commutator fusing

1973 EIC 11th Electrical Insulation Conference, 1973
One 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.
openaire   +2 more sources

Commuting in Happyville

2016
International ...
openaire   +8 more sources

Sobolev regularity for commutators of the fractional maximal functions

Banach Journal of Mathematical Analysis, 2020
Feng Liu, Shuai Xi
semanticscholar   +1 more source

On the compactness of commutators of Hardy operators

, 2020
S. Shi, Zunwei Fu, Shan-zhen Lu
semanticscholar   +1 more source

Commutators and generalized local Morrey spaces

, 2018
V. Guliyev, M. Omarova, M. Ragusa, A. Scapellato   +3 more
semanticscholar   +1 more source