Results 81 to 90 of about 1,085 (195)

Toeplitz Operators on the Weighted Bergman Space over the Two-Dimensional Unit Ball

Journal of Function Spaces, 2015
We extend the known results on commutative Banach algebras generated by Toeplitz operators with radial quasi-homogeneous symbols on the two-dimensional unit ball.
Alma García, Nikolai Vasilevski
doaj   +1 more source

The backward shift on weighted Bergman spaces.

Michigan Mathematical Journal, 1996
The authors study the backward shift-invariant subspaces of the weighted Bergman spaces \(A_\alpha^p\) for \(\alpha>-1\) and \(1\leq ...
Aleman, Alexandru, Ross, William T.
openaire   +2 more sources

An Idealized Two‐Dimensional Atmospheric Model of the Quasi‐Biennial Oscillation and Wave‐Mean Flow Interactions in the Equatorial Channel

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 3, March 2026.
Abstract The quasi‐biennial oscillation (QBO) is a fundamental mode of atmospheric variability and a textbook example of wave‐mean flow interactions. While its general theory has been established about 50 years ago by the seminal works of Holton, Lindzen and Plumb (HLP), it remains an unsettled problem of geophysical fluid dynamics and a challenge for ...
Vincent Brémaud, Aurélien Podglajen, Albert Hertzog, Riwal Plougonven   +3 more
wiley   +1 more source

A NOTE ON A TWO-PARAMETER FAMILY OF OPERATORS ${\MATHCAL A}^{B,C}$ ON WEIGHTED BERGMAN SPACES

Проблемы анализа, 2019
In this article, we prove that the two-parameter family of operators Ab,c is bounded on the weighted Bergman spaces B p α+c−1 if α + 2 < p and unbounded if α + 2 = p.
S. Naik, P. K. Nath
doaj   +1 more source

Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems

Acta Crystallographica Section A, Volume 82, Issue 2, Page 108-117, March 2026.
The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Ireneusz Buganski, Stanislav Vrtnik, Radoslaw Strzalka, Andreja Jelen, Sandra Drev, Janusz Wolny, Nobuhisa Fujita   +6 more
wiley   +1 more source

The making of novel ecosystems: A process‐based framework for measurement, analysis and application

Methods in Ecology and Evolution, Volume 17, Issue 3, Page 683-704, March 2026.
Abstract Ecological novelty is emerging rapidly due to global change drivers such as climate shifts, species introductions, defaunation, and land‐use transformation. These changes challenge how we assess, understand and manage ecosystems in the Anthropocene.
Matthew R. Kerr, Jens‐Christian Svenning, Felix Riede, Robert Buitenwerf, Andrew J. Abraham, Emma‐Liina Marjakangas, Maciej Sykut, Alejandro Ordonez   +7 more
wiley   +1 more source

Weighted Bergman spaces and the $\partial -$equation [PDF]

Transactions of the American Mathematical Society, 2014
23 pages; Some minor mistakes are corrected; to appear in Trans ...
openaire   +3 more sources

A Conceptual Framework and Methods for Studying the Connectivity of Fishes

Fish and Fisheries, Volume 27, Issue 2, Page 342-369, March 2026.
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman, Jessica A. Robichaud, Jasper McCutcheon, Michael T. Booth, Brendan Campbell, Grace A. Casselberry, Cienna R. Cooper, Bronwyn M. Gillanders, Lucas P. Griffin, Edward Hale, Luc LaRochelle, Karen J. Murchie, Mary Peacock, Reid G. Swanson, Simon D. Stewart, Ryan. J. Woodland, Daniel P. Zielinski, Steven J. Cooke, Morgan L. Piczak   +18 more
wiley   +1 more source

The dysregulation of innate immunity by Porphyromonas gingivalis in the etiology of Alzheimer's disease

Journal of Internal Medicine, Volume 299, Issue 3, Page 328-348, March 2026.
Abstract The etiology of Alzheimer's disease (AD) remains under active debate. In this perspective, we explore the hypothesis that a primarily infection‐caused chronic dysregulation and weakening of human innate immunity via the underexpression, degradation, and inactivation of innate immune proteins necessary for direct antimicrobial effects and ...
Annelise E. Barron, Jennifer S. Lin, Mark I. Ryder, Peter Bergman   +3 more
wiley   +1 more source

Isoperimetric inequalities for conformal moments of plane domains

Journal of Inequalities and Applications, 2002
We prove a new sharp inequality for norms in weighted Bergman space. This inequality is then used to derive isoperimetric inequalities for geometric functionals which are closely related to the torsional rigidity of a simply connected domain (F.
Avkhadiev FG, Salahudinov RG
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