Results 121 to 130 of about 2,707 (136)

Lidskii-type formulae for Dixmier traces [PDF]

arXiv, 2010
We establish several analogues of the classical Lidskii Theorem for some special classes of singular traces (Dixmier traces and Connes-Dixmier traces) used in noncommutative geometry.
arxiv  

Sobolev inequalities, rearrangements, isoperimetry and interpolation spaces [PDF]

arXiv, 2010
We characterize Poincar\'{e} inequalities in metric spaces using rearrangement ...
arxiv  

Commutators of multilinear fractional maximal operators with Lipschitz functions on Morrey spaces

Open Mathematics
In this work, we present necessary and sufficient conditions for the boundedness of the commutators generated by multilinear fractional maximal operators on the products of Morrey spaces when the symbol belongs to Lipschitz spaces.
Zhang Pu, Ağcayazı Müjdat
doaj   +1 more source

Anisotropic adams’ type inequality with exact growth in R4 ${\mathbb{R}}^{4}$

Advanced Nonlinear Studies
In this paper, we mainly extend the classical Adams’ inequality to its anisotropic type. By using the rearrangement argument, we establish best constants for anisotropic Adams’ type inequality with exact growth in R4 ${\mathbb{R}}^{4}$ .
Zhang Tao, Yang Fan, Cheng Tingzhi, Zhou Chunqin   +3 more
doaj   +1 more source

Abstract Korovkin-type theorems in modular spaces and applications

Open Mathematics, 2013
Bardaro Carlo, Boccuto Antonio, Dimitriou Xenofon, Mantellini Ilaria   +3 more
doaj   +1 more source

The essential norm of bounded diagonal infinite matrices acting on Banach sequence spaces

Demonstratio Mathematica
We calculate the essential norm of bounded diagonal infinite matrices acting on Köthe sequence spaces. As a consequence of our result, we obtain a recent criteria for the compactness of multiplication operator acting on Köthe sequence spaces.
Fernández Julio C. Ramos, Rivera-Sarmiento María A., Salas-Brown Margot   +2 more
doaj   +1 more source

Dichotomies for Lorentz spaces

Open Mathematics, 2013
Głąb Szymon, Strobin Filip, Yang Chan
doaj   +1 more source

Composition operators on W 1 X are necessarily induced by quasiconformal mappings

Open Mathematics, 2014
Kleprlík Luděk
doaj   +1 more source

On some properties of the functions from Sobolev-Morrey type spaces

Open Mathematics, 2005
Najafov Alik
doaj   +1 more source

Note on the concentration-compactness principle for generalized Moser-Trudinger inequalities

Open Mathematics, 2012
Černý Robert
doaj   +1 more source