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In convex geometry, the Blaschke surface area measure on the boundary of a convex domain can be interpreted in terms of the complexity of approximating polyhedra. In response to a question raised by D. Barrett, this approach is formulated…

复变函数 · 数学 2016-05-03 Purvi Gupta

A flag domain of a real from $G_0$ of a complex semismiple Lie group $G$ is an open $G_0$-orbit $D$ in a (compact) $G$-flag manifold. In the usual way one reduces to the case where $G_0$ is simple. It is known that if $D$ possesses…

复变函数 · 数学 2018-07-20 T. Hayama , A. Huckleberry , Q. Latif

The paper is concerned with the boundary behaviour of polynomially and rationally convex hulls in pseudoconvex domains in $\mathbb{C}^n$. As an application, it is shown that every connected polynomially or rationally convex compact set with…

复变函数 · 数学 2026-05-26 Stefan Nemirovski , Josias Reppekus , Nikolay Shcherbina

We present a result on existence of some kind of peak functions for $\C$-convex domains and for the symmetrized polydisc. Then we apply the latter result to show the equivariance of the set of peak points for $A(D)$ under proper holomorphic…

复变函数 · 数学 2012-05-16 W. Zwonek , L. Kosinski

The central purpose of the present paper is to study boundary behavior of squeezing functions on bounded domains. We prove that the squeezing function of a strongly pseudoconvex domain tends to 1 near the boundary. In fact, such an estimate…

复变函数 · 数学 2013-02-22 Fusheng Deng , Qi'an Guan , Liyou Zhang

We give an explicit construction of special strongly pseudoconvex domains in C^n of handlebody type, i.e., domains which are small tubes surrounding the union of a quadratic strongly pseudoconvex domain with an attached totally real handle.…

复变函数 · 数学 2007-05-23 Franc Forstneric , Jernej Kozak

A sufficient condition for $\bar{\partial}$ to have closed range is given for pseudoconvex, possibly unbounded domains in $\mathbb{C}^n$.

复变函数 · 数学 2015-02-05 A. -K. Herbig , J. D. McNeal

We show that a domain that satisfies the visibility property with $\mathcal C^2$-smooth boundary is pseudoconvex.

复变函数 · 数学 2024-10-14 Nikolai Nikolov , Ahmed Yekta Ökten , Pascal J. Thomas

J. E. Fornaess has posed the question whether the boundary point of smoothly bounded pseudoconvex domain is strictly pseudoconvex, if the asymptotic limit of the squeezing function is 1. The purpose of this paper is to give an affirmative…

复变函数 · 数学 2016-12-09 Seungro Joo , Kang-Tae Kim

It is shown that any non-degenerate $\mathbb C$-convex domain in $\mathbb C^n$ is uniformly squeezing. It is also found the precise behavior of the squeezing function near a Dini-smooth boundary point of a plane domain.

复变函数 · 数学 2018-08-14 Nikolai Nikolov , Lyubomir Andreev

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

We study the boundary behaviour of a variant of the Fridman's invariant function (defined in terms of the Bergman metric) on Levi corank one domains, strongly pseudoconvex domains, smoothly bounded convex domains in $ \mathbb{C}^n $ and…

复变函数 · 数学 2024-01-09 Rahul Kumar , Prachi Mahajan

Given an unbounded strongly pseudoconvex domain D and a continuous real valued function h defined on bD, we study the existence of a (maximal) plurisubharmonic function u on D such that u=h on bD.

复变函数 · 数学 2007-05-23 Alexandru Simioniuc , Giuseppe Tomassini

We prove that a relatively compact pseudoconvex domain with smooth boundary in an almost complex manifold admits a bounded strictly plurisubharmonic exhaustion function. We use this result for the study of convexity and hyperbolicity…

复变函数 · 数学 2007-05-23 Klas Diederich , Alexandre Sukhov

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

We prove that all locally exposable points in a Stein compact in a complex space can be exposed along a given curve to a given real hypersurface. Moreover, the exposing map for a boundary point can be sufficiently close to the identity map…

复变函数 · 数学 2016-07-12 Fusheng Deng , John Erik Fornaess , Erlend Fornaess Wold

The main purpose of the present paper is to introduce the notion of squeezing functions of bounded domains and study some properties of them. The relation to geometric and analytic structures of bounded domains will be investigated.…

复变函数 · 数学 2011-11-03 Fusheng Deng , Qian Guan , Liyou Zhang

A differentiable function is pseudoconvex if and only if its restrictions over straight lines are pseudoconvex. A differentiable function depending on one variable, defined on some closed interval $[a,b]$ is pseudoconvex if and only if…

最优化与控制 · 数学 2019-11-19 Vsevolod Ivanov Ivanov

We study on the biholomorphic equivalence of a strongly pseudoconvex bounded domain with differentiable spherical boundary to an open ball, and we study on the biholomorphicity of a proper holomorphic self mapping of a strongly pseudoconvex…

复变函数 · 数学 2007-05-23 Won K. Park

We treat the boundary problem for complex varieties (with isolated singularities) of dimension greater than one, which are contained in a suitable class of strictly pseudoconvex, unbounded domains of C^n.

复变函数 · 数学 2007-05-23 Giuseppe Della Sala , Alberto Saracco