Results 11 to 20 of about 1,610 (98)

From Hardy to Rellich inequalities on graphs

open access: yesProceedings of the London Mathematical Society, Volume 122, Issue 3, Page 458-477, March 2021., 2021
Abstract We show how to deduce Rellich inequalities from Hardy inequalities on infinite graphs. Specifically, the obtained Rellich inequality gives an upper bound on a function by the Laplacian of the function in terms of weighted norms. These weights involve the Hardy weight and a function which satisfies an eikonal inequality.
Matthias Keller   +2 more
wiley   +1 more source

The Equivalence of Operator Norm between the Hardy‐Littlewood Maximal Function and Truncated Maximal Function on the Heisenberg Group

open access: yesJournal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
In this article, we define a kind of truncated maximal function on the Heisenberg space by Mγcfx=sup0
Xiang Li   +2 more
wiley   +1 more source

Improved quality of life in patients with refractory or recidivant ascites after insertion of transjugular intrahepatic portosystemic shunts [PDF]

open access: yes, 2002
Background. We have recently shown that the transjugular intrahepatic portosystemic shunt (TIPS) is more effective than paracentesis in the treatment of cirrhotic patients with severe ascites and can prolong survival in selected patients.
Bilzer, M.   +5 more
core   +1 more source

Non-existence of multi-line Besicovitch sets [PDF]

open access: yes, 2013
If a compact set K \subset R^2 contains a positive-dimensional family of line-segments in positively many directions, then K has positive measure.Comment: 7 pages.
Orponen, Tuomas
core   +3 more sources

Variation inequalities for rough singular integrals and their commutators on Morrey spaces and Besov spaces

open access: yesAdvances in Nonlinear Analysis, 2021
This paper is devoted to investigating the boundedness, continuity and compactness for variation operators of singular integrals and their commutators on Morrey spaces and Besov spaces.
Zhang Xiao, Liu Feng, Zhang Huiyun
doaj   +1 more source

Local lower norm estimates for dyadic maximal operators and related Bellman functions [PDF]

open access: yes, 2015
We provide lower $L^q$ and weak $L^p$-bounds for the localized dyadic maximal operator on $R^n$, when the local $L^1$ and the local $L^p$ norm of the function are given.
Melas, Antonios D.   +1 more
core   +2 more sources

Stein-Weiss inequality for local mixed radial-angular Morrey spaces

open access: yesOpen Mathematics, 2022
In this article, a generalization of the well-known Stein-Weiss inequality for the fractional integral operator on functions with different integrability properties in the radial and the angular direction in local Morrey spaces is established.
Wei Mingquan, Su Fangming, Sun Lanyin
doaj   +1 more source

θ-type Calderón-Zygmund Operators and Commutators in Variable Exponents Herz space

open access: yesOpen Mathematics, 2018
The aim of this paper is to deal with the boundedness of the θ-type Calderón-Zygmund operators and their commutators on Herz spaces with two variable exponents p(⋅), q(⋅).
Yang Yanqi, Tao Shuangping
doaj   +1 more source

Sparse bilinear forms for Bochner Riesz multipliers and applications

open access: yesTransactions of the London Mathematical Society, Volume 4, Issue 1, Page 110-128, December 2017., 2017
Abstract We use the very recent approach developed by Lacey in [An elementary proof of the A2 Bound, Israel J. Math., to appear] and extended by Bernicot, Frey and Petermichl in [Sharp weighted norm estimates beyond Calderón‐Zygmund theory, Anal. PDE 9 (2016) 1079–1113], in order to control Bochner–Riesz operators by a sparse bilinear form. In this way,
Cristina Benea   +2 more
wiley   +1 more source

Area Integral Characterization of Hardy space H1L related to Degenerate Schrödinger Operators

open access: yesAdvances in Nonlinear Analysis, 2019
Let
Huang Jizheng, Li Pengtao, Liu Yu
doaj   +1 more source

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