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The purpose of this article is twofold. First, we prove that the squeezing function approaches 1 near strongly pseudoconvex boundary points of bounded domains in $\mathbb{C}^{n+1}$. Second, we show that the squeezing function approaches 1…

Complex Variables · Mathematics 2026-01-28 Ninh Van Thu

It is shown that if the squeezing function tends to one at an h-extendible boundary point of a $\mathcal C^\infty$-smooth, bounded pseudoconvex domain, then the point is strictly pseudoconvex.

Complex Variables · Mathematics 2018-08-14 Nikolai Nikolov

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…

Complex Variables · Mathematics 2013-02-22 Fusheng Deng , Qi'an Guan , Liyou Zhang

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…

Complex Variables · Mathematics 2016-12-09 Seungro Joo , Kang-Tae Kim

We construct a class of bounded domains, on which the squeezing function is not uniformly bounded from below near a smooth and pseudoconvex boundary point.

Complex Variables · Mathematics 2017-04-11 John Erik Fornaess , Feng Rong

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.…

Complex Variables · Mathematics 2011-11-03 Fusheng Deng , Qian Guan , Liyou Zhang

In this paper we establish a gap theorem for the complex geometry of smoothly bounded convex domains which informally says that if the complex geometry near the boundary is close to the complex geometry of the unit ball, then the domain…

Complex Variables · Mathematics 2017-06-23 Andrew Zimmer

In this article we continue the study of properties of squeezing functions and geometry of bounded domains. The limit of squeezing functions of a sequence of bounded domains is studied. We give comparisons of intrinsic positive forms and…

Complex Variables · Mathematics 2013-02-25 Fusheng Deng , Qi'an Guan , Liyou Zhang

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.

Complex Variables · Mathematics 2013-06-12 Kang-Tae Kim , Liyou Zhang

We revisit the phenomenon where, for certain domains $D$, if the squeezing function $s_D$ extends continuously to a point $p\in \partial{D}$ with value $1$, then $\partial{D}$ is strongly pseudoconvex around $p$. In $\mathbb{C}^2$, we…

Complex Variables · Mathematics 2023-02-24 Gautam Bharali

Pseudoconvexity of a domain in $\Bbb C^n$ is described in terms of the existence of a locally defined plurisubharmonic/holomorphic function near any boundary point that is unbounded at the point.

Complex Variables · Mathematics 2010-06-23 Nikolai Nikolov , Peter Pflug , Pascal J. Thomas , Wlodzimierz Zwonek

In this paper, we investigate the characterization of balanced bounded convex domains in $\mathbb{C}^n$ in terms of the squeezing function. As an application, we provide a characterization of the polydisc in $\mathbb{C}^n$.

Complex Variables · Mathematics 2024-02-14 Sanjoy Chatterjee , Golam Mostafa Mondal

In this paper, we provide some characterizations of strong pseudoconvexity by the boundary behavior of intrinsic invariants for smoothly bounded pseudoconvex domains of finite type in $\mathbb{C}^2$. As a consequence, if such domain is…

Complex Variables · Mathematics 2024-01-03 Jinsong Liu , Xingsi Pu , Lang Wang

We show that a smooth bounded domain in $\mathbb{C}^n$ admitting partial pseudoconvex exhaustion remains partial pseudoconvex. The main ingredient of the proof is based on a new characterization of hyper-$q$-convex domains. Furthermore, we…

Complex Variables · Mathematics 2025-04-29 Jinjin Hu , Xujun Zhang

We survey results arising from the study of domains in C^n with non-compact automorphism group. Beginning with a well-known characterization of the unit ball, we develop ideas toward a consideration of weakly pseudoconvex (and even…

Complex Variables · Mathematics 2016-09-06 A. V. Isaev , S. G. Krantz

In recent work by Zimmer it was proved that if $\Omega\subset\mathbb C^n$ is a bounded convex domain with $C^\infty$-smooth boundary, then $\Omega$ is strictly pseudoconvex provided that the squeezing function approaches one as one…

Complex Variables · Mathematics 2018-10-17 John Erik Fornæss , Erlend Fornæss Wold

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.

Complex Variables · Mathematics 2018-08-14 Nikolai Nikolov , Lyubomir Andreev

We construct a strictly pseudoconvex domain with smooth boundary whose squeezing function is not plurisubharmonic.

Complex Variables · Mathematics 2016-04-28 John Erik Fornæss , Nikolay Shcherbina

The purpose of this article is to study Lipschitz CR mappings from an $h$-extendible (or semi-regular) hypersurface in $\mbb C^n$. Under various assumptions on the target hypersurface, it is shown that such mappings must be smooth. A…

Complex Variables · Mathematics 2011-02-15 G. P. Balakumar , Kaushal Verma

We prove two separate lower bounds -- one for nondegenerate convex domains and the other for nondegenerate $\mathbb{C}$-convex (but not necessarily convex) domains -- for the squeezing function that hold true for all domains in…

Complex Variables · Mathematics 2026-02-16 Gautam Bharali , Nikolai Nikolov
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