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Related papers: Compactness in the d-bar-Neumann problem

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In this paper, we establish a Minkowski-type inequality for weak Lebesgue space, which allows us to obtain a characterization of relative compactness in these spaces. Furthermore, we are the first to investigate the compactness results of…

Functional Analysis · Mathematics 2023-09-20 Dinghuai Wang , Xi Hu , Shuai Qi

We consider commuting squares of finite dimensional von Neumann algebras having the algebra of complex numbers in the lower left corner. Examples include the vertex models, the spin models (in the sense of subfactor theory) and the…

Operator Algebras · Mathematics 2007-05-23 Teodor Banica

This paper is devoted to the study of degenerate critical elliptic equations of Caffarelli-Kohn-Nirenberg type. By means of blow-up analysis techniques, we prove an a-priori estimate in a weighted space of continuous functions. From this…

Analysis of PDEs · Mathematics 2007-05-23 Veronica Felli , Matthias Schneider

We show that in certain superstring compactifications, gauge theories on noncommutative tori will naturally appear as D-brane world-volume theories. This gives strong evidence that they are well-defined quantum theories. It also gives a…

High Energy Physics - Theory · Physics 2010-02-03 Michael R. Douglas , Chris Hull

We discuss the impact of different measurements of the dbar/ubar asymmetry in the extraction of parameterizations of parton distribution functions.

High Energy Physics - Phenomenology · Physics 2011-03-23 A. Daleo , C. A. Garcia Canal , G. A. Navarro , R. Sassot

In this note, we prove an existence result for generalized Kazdan-Warner equations on compact Riemannian manifolds by using the flow approach or the upper and lower solution method. In addition, we give a prior estimate for this type…

Analysis of PDEs · Mathematics 2023-07-11 Weike Yu

We discuss some notions of compactness and convergence relative to a specified family F of subsets of some topological space X. The two most interesting particular cases of our construction appear to be the following ones. (1) The case in…

General Topology · Mathematics 2011-06-07 Paolo Lipparini

We give a blow-up behavior for solutions to a problem with singularity and with Dirichlet condition. An application, we have a compactness of the solutions to this Problem with singularity and Lipschitz conditions.

Analysis of PDEs · Mathematics 2018-09-26 Samy Skander Bahoura

We establish a connection between compactness of Hankel operators and geometry of the underlying domain through compactness multipliers for the $\overline{\partial}$-Neumann operator. In particular, we prove that any compactness multiplier…

Complex Variables · Mathematics 2016-11-22 Mehmet Çelik , Yunus E. Zeytuncu

We generalize the dual notions of "expansion" and "collapse" so they can be applied to arbitrary metric spaces. We also expand the theory to allow for infinitely many such moves. Those tools are then employed to prove a variety of…

Geometric Topology · Mathematics 2023-11-07 Craig R. Guilbault , Daniel Gulbrandsen

Here we give a short survey of our new results. References to the complete proofs can be found in the text of this article and in the litterature.

Combinatorics · Mathematics 2009-10-16 Vitaliy Koshelev

The aim of this paper is to introduce the concept of Delta-Compact spaces along with some basic properties of it. Here, we try to establish the behavior of Delta-Compact spaces under the continuous mapping. Finally, we define another…

General Topology · Mathematics 2023-04-17 Sanjay Roy , Srabani Mondal , Shrobana Sinha Roy , Bobi Mandal

Several complementary approaches to investigate knotted solutions of Maxwell's equations in vacuum are now available in literature. However, only partial results towards a unified description of them have been achieved. This is potentially…

Mathematical Physics · Physics 2020-04-13 E. Goulart , J. E. Ottoni

This paper is a broad-band review of the current status of non-baryonic dark matter research. I start with a historical overview of the evidences of dark matter existence, then I discuss how dark matter is distributed from small scale to…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-17 A. Del Popolo

In this small note we ask several questions which are relevant to the construction of the self-consistent neutrino theory of light. The previous confusions in such attempts are explained in the more detailed publication.

High Energy Physics - Theory · Physics 2007-05-23 Valeri V. Dvoeglazov

We prove that on smooth bounded pseudoconvex Hartogs domains in $\mathbb{C}^2$ compactness of the $\bar{\partial}$-Neumann operator is equivalent to compactness of all Hankel operators with symbols smooth on the closure of the domain.

Complex Variables · Mathematics 2020-05-18 Sonmez Sahutoglu , Yunus E. Zeytuncu

In this paper we present some compactness results, showing how they can be applied in dealing with "zero mass" problems by a variational approach. In particular we use our results in two different situations: we look for complex valued…

Analysis of PDEs · Mathematics 2007-05-23 Antonio Azzollini , Alessio Pomponio

We provide a new construction of Huber's universal compactification in the case of the structure morphism of a quasi-compact, separated rigid analytic space over a non-archimedean field. We make use of Raynaud's theory of formal models and…

Algebraic Geometry · Mathematics 2023-06-21 Mateusz Kobak

Let $\D=\D_1\setminus \Dc_2$, where $\D_1$ and $\D_2$ are two smooth bounded pseudoconvex domains in $\C^n, n\geq 3,$ such that $\Dc_2\subset \D_1.$ Assume that the $\dbar$-Neumann operator of $\D_1$ is compact and the interior of the…

Complex Variables · Mathematics 2021-03-08 Mehmet Celik , Sonmez Sahutoglu
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