Results 111 to 120 of about 1,893 (145)

Uniform boundedness and compactness for the commutator of an extension of Riesz transform on stratified Lie groups

Advances in Nonlinear Analysis
Let G{\mathcal{G}} be a stratified Lie group, and let {Xj}1≤j≤n1{\left\{{X}_{j}\right\}}_{1\le j\le {n}_{1}} be a basis of the left-invariant vector fields of degree one on G{\mathcal{G}} and Δ=−∑j=1n1Xj2\Delta =-{\sum }_{j=1}^{{n}_{1}}{X}_{j}^{2} be the
Han Xueting, Chen Yanping
doaj   +1 more source

Transference of local to global $L^2$ maximal estimates for dispersive partial differential equations

, 2017
In this paper we give an elementary proof for transference of local to global maximal estimates for dispersive PDEs. This is done by transferring local $L^2$ estimates for certain oscillatory integrals with rough phase functions, to the corresponding ...
Castro, Alejandro J., Rodríguez-López, Salvador, Staubach, Wolfgang   +2 more
core  

Sharp weighted estimates for multi-frequency Calder\'on-Zygmund operators

, 2017
In this paper we study weighted estimates for the multi-frequency $\omega-$Calder\'{o}n-Zygmund operators $T$ associated with the frequency set $\Theta=\{\xi_1,\xi_2,\dots,\xi_N\}$ and modulus of continuity $\omega$ satisfying the usual Dini condition ...
Raani, K. S. Senthil, Shrivastava, Saurabh   +1 more
core  

Lp estimates for maximal functions along surfaces of revolution on product spaces

Open Mathematics, 2019
This paper is concerned with establishing Lp estimates for a class of maximal operators associated to surfaces of revolution with kernels in Lq(Sn−1 × Sm−1), q > 1.
Ali Mohammed, Reyyashi Musa
doaj   +1 more source

Bloom-type two-weight inequalities for commutators of maximal functions

Analysis and Geometry in Metric Spaces
We study Bloom-type two-weight inequalities for commutators of the Hardy-Littlewood maximal function and sharp maximal function. Some necessary and sufficient conditions are given to characterize the two-weight inequalities for such commutators.
Zhang Pu, Fan Di
doaj   +1 more source

Parametric Fourier and Mellin transforms of power-constructible functions

Forum of Mathematics, Sigma
We enrich the class of power-constructible functions, introduced in [CCRS23], to a class $\mathcal {C}^{\mathcal {M,F}}$ of algebras of functions which contains all complex powers of subanalytic functions and their parametric Mellin and Fourier ...
Raf Cluckers, Georges Comte, Tamara Servi   +2 more
doaj   +1 more source

Commutators for the maximal and sharp functions with weighted Lipschitz functions on weighted Morrey spaces

Demonstratio Mathematica
We study the boundedness of commutators of the Hardy-Littlewood maximal function and the sharp maximal function on weighted Morrey spaces when the symbols of the commutators belong to weighted Lipschitz spaces (weighted Morrey-Campanato spaces). Some new
Zhang Pu, Fan Di
doaj   +1 more source

Boundedness of a class of rough maximal functions. [PDF]

J Inequal Appl, 2018
Ali M, Al-Mohammed O.
europepmc   +1 more source

Oscillation and variation inequalities for the multilinear singular integrals related to Lipschitz functions. [PDF]

J Inequal Appl, 2017
Hu Y, Wang Y.
europepmc   +1 more source

Weighted norm inequalities for multilinear Calderón-Zygmund operators in generalized Morrey spaces. [PDF]

J Inequal Appl, 2017
Wang P, Liu Z.
europepmc   +1 more source