中文
相关论文

相关论文: An example of a bounded $\Bbb C$-convex domain whi…

200 篇论文

The Levi geometry at weakly pseudoconvex boundary points of domains in C^n, n \geq 3, is sufficiently complicated that there are no universal model domains with which to compare a general domain. Good models may be constructed by bumping…

复变函数 · 数学 2015-08-28 Gautam Bharali

Motivated by recent papers \cite{For-Rong 2021} and \cite{Ng-Rong 2024} we prove a boundary Schwarz lemma (Burns-Krantz rigidity type theorem) for non-smooth boundary points of the polydisc and symmetrized bidisc. Basic tool in the proofs…

复变函数 · 数学 2026-01-14 Włodzimierz Zwonek

Let $D\subset\mathbb{C}^n$ with $n>1$ be a pseudoconvex domain, possibly unbounded, that contains a non-smooth strongly pseudoconvex polyhedral boundary point. We show that the Bergman metric of $D$ is not Einstein.

复变函数 · 数学 2025-12-10 Xiaojun Huang , Scott James , Xiaoshan Li

In this paper, we prove that the closure of a bounded pseudoconvex domain, which is spirallike with respect to a globally asymptotic stable holomorphic vector field, is polynomially convex. We also provide a necessary and sufficient…

复变函数 · 数学 2023-07-12 Sanjoy Chatterjee , Sushil Gorai

We describe the boundary behaviors of the squeezing functions for all bounded convex domains in $\mathbb{C}^n$ and bounded domains with a $C^2$ strongly convex boundary point.

复变函数 · 数学 2013-06-12 Kang-Tae Kim , Liyou Zhang

Let $\Omega $ be a bounded ${\mathcal{C}}^{\infty}$-smoothly bounded domain in ${\mathbb{C}}^{n}.$ For such a domain we define a new notion between strict pseudo-convexity and pseudo-convexity: the size of the set $W$ of weakly…

复变函数 · 数学 2019-11-06 Eric Amar

We prove that there exists a bounded convex domain $\Omega \subset \mathbf{R}^3$ of fixed volume that minimizes the first positive curl eigenvalue among all other bounded convex domains of the same volume. We show that this optimal domain…

偏微分方程分析 · 数学 2026-02-13 Alberto Enciso , Wadim Gerner , Daniel Peralta-Salas

In this brief note, we provide an example of non complete locally convex space $E$ with a $\sigma(E, E^*)$ closed bounded subset $C\subset E$, which is not $\sigma(E, E^*)$-compact, even if every $\varphi\in E^*$ attains its sup over $C$.

泛函分析 · 数学 2009-10-24 Stefano Rossi

We prove the boundedness of Bergman type projections in two different analytic function spaces in bounded strongly pseudoconvex domains with the smooth boundary. Our results were previously well-known in the case of the unit disk.

复变函数 · 数学 2025-08-28 R. F. Shamoyan , E. B. Tomashevskaya

We give three proofs of the fact that a smoothly bounded, convex domain in R^n has smooth defining functions whose Hessians are non-negative definite in a neighborhood of the boundary of the domain.

复变函数 · 数学 2012-04-04 A. -K. Herbig , J. D. McNeal

In this paper, the notion of $c$-support points of a set in a semitopological cone is introduced. It is shown that any nonempty convex Scott closed bounded set has a $c$-support point in a cancellative $bd$-cone under certain condition. We…

泛函分析 · 数学 2019-12-25 Ali Hassanzadeh , Ildar Sadeqi , Asghar Ranjbari

For $D$, $D'$ analytic polyhedra in $C^n$, it is proven that a biholomorphic mapping $f\colon D\to D'$ extends holomorphically to a dense boundary subset under certain condition of general position. This result is also extended to a more…

复变函数 · 数学 2007-05-23 Dmitri Zaitsev

We show in this paper that every domain in a separable Hilbert space, say $\cH$, which has a $C^2$ smooth strongly pseudoconvex boundary point at which an automorphism orbit accumulates is biholomorphic to the unit ball of $\cH$. This is…

复变函数 · 数学 2007-05-23 Kang-Tae Kim , Daowei Ma

In this article, we consider a bounded pseudoconvex domain in ${\bf C}^2$ satifying: (a) it admits a proper holomorphic mapping $f$ onto the unit ball $B^2$, and (b) it is simply connected and has a real analytic boundary. According to…

复变函数 · 数学 2008-02-03 Kang-Tae Kim , Mario Landucci , Andrea F. Spiro

In this work we address the question of the existence of nonradial domains inside a nonconvex cone for which a mixed boundary overdetermined problem admits a solution. Our approach is variational, and consists in proving the existence of…

偏微分方程分析 · 数学 2022-07-06 Alessandro Iacopetti , Filomena Pacella , Tobias Weth

Liebmann's Theorem asserts that a compact, connected, convex surface with constant mean curvature (CMC) in the Euclidean space must be a totally umbilical sphere. In this article we extend Liebmann's result to hypersurfaces with boundary.…

微分几何 · 数学 2025-08-26 Flávio França Cruz , Barbara Nelli

We show that for any bounded domain $\Omega\subset\Cp ^n$ of 1-type $2k $ which is locally convexifiable at $p\in b\Omega$, having a Stein neighborhood basis, there is a biholomorphic map $f:\bar{\Omega}\rightarrow \Cp ^n $ such that $f(p)$…

复变函数 · 数学 2013-03-11 Klas Diederich , John Erik Fornaess , Erlend Fornaess Wold

We prove that, under some generic non-degeneracy assumptions, real analytic, centrally symmetric plane domains are determined by their Dirichlet (resp. Neumann) spectra. We prove that the conditions are open-dense for real analytic convex…

谱理论 · 数学 2021-04-20 Hamid Hezari , Steve Zelditch

We study some special almost complex structures on strictly pseudoconvex domains. They appear naturally as limits under a nonisotroping scaling procedure and play a role of model objects in the geometry of almost complex manifolds with…

复变函数 · 数学 2007-05-23 H. Gaussier , A. Sukhov

We prove that a Hilbert domain which is quasi-isometric to a normed vector space is actually a convex polytope.

度量几何 · 数学 2009-05-27 Bruno Colbois , Patrick Verovic