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An extension of the estimates for the squeezing function of strictly pseudoconvex domains obtained recently by J. E. Forn\ae ss and E. Wold in \cite{FW1} is applied to derive a sharp boundary behaviour of invariant metrics and Bergman…

复变函数 · 数学 2021-01-29 Nikolai Nikolov , Maria Trybuła

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.

复变函数 · 数学 2017-04-11 John Erik Fornaess , Feng Rong

A quantitative version of strong localization of the Kobayashi, Azukawa and Sibony metrics, as well as of the squeezing function, near a plurisubharmonic peak boundary point of a domain in $\Bbb C^n$ is given. As an application, the…

复变函数 · 数学 2023-11-28 John Erik Fornæss , Nikolai Nikolov

More precise estimates for the Bergman metric on strongly pseudoconvex domains are given, based on the use of the squeezing function.

复变函数 · 数学 2015-04-23 Klas Diederich , J. E. Fornæss

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 a class of domains for which Fridman invariant and injectivity radius function coincide with respect to Carath\'eodory metric. We give explicit expressions of the squeezing functions for these domains and investigate some of their…

复变函数 · 数学 2024-06-17 Akhil Kumar , Sanjay Kumar Pant

We present a new application of the squeezing function $s_D$, using which one may detect when a given bounded pseudoconvex domain $D\varsubsetneq \mathbb{C}^n$, $n\geq 2$, is not biholomorphic to any product domain. One of the ingredients…

复变函数 · 数学 2023-11-07 Gautam Bharali , Diganta Borah , Sushil Gorai

Studying the behavior of real and complex geodesics we provide sharp estimates for the Kobayashi distance, the Lempert function, and the Carath\'eodory distance on $\mathcal{C}^{2,\alpha}$-smooth strongly pseudoconvex domains. Similar…

复变函数 · 数学 2025-06-11 Łukasz Kosiński , Nikolai Nikolov , Ahmed Yekta Ökten

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…

复变函数 · 数学 2013-02-25 Fusheng Deng , Qi'an Guan , Liyou Zhang

We establish a lower estimate for the Kobayashi-Royden infinitesimal pseudometric on an almost complex manifold $(M,J)$ admitting a bounded strictly plurisubharmonic function. We apply this result to study the boundary behaviour of the…

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

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…

复变函数 · 数学 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.

复变函数 · 数学 2018-08-14 Nikolai Nikolov

We give precise estimates of some holomorphically invariant infinitesimal metrics near a pseudoconcave points in a wide family of ``model'' domains for that situation in $\mathbb C^2$. This extends to metrics (rather distances) the authors'…

复变函数 · 数学 2026-05-05 Pascal J. Thomas , Nikolai Nikolov

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

We study Whitney-type estimates for approximation of convex functions in the uniform norm on various convex multivariate domains while paying a particular attention to the dependence of the involved constants on the dimension and the…

经典分析与常微分方程 · 数学 2025-10-15 Jaskaran Singh Kaire , Andriy Prymak

In this paper, we calculate estimates for invariant metrics on a finite type convex domain in $\mathbb C^n$ using the Sibony metric. We also discuss a possible modification of the Sibony metric.

复变函数 · 数学 2009-11-13 Lina Lee

Estimates of the Bergman kernel and the Bergman and Kobayashi metrics on pseudoconvex domains near boundaries with constant Levi ranks are given.

复变函数 · 数学 2012-03-09 Siqi Fu

In this paper, we derive new estimates for the remainder term of the midpoint, trapezoid, and Simpson formulae for functions whose derivatives in absolute value at certain power are quasi-convex. Some applications to special means of real…

经典分析与常微分方程 · 数学 2012-07-25 Imdat Iscan

We consider the subharmonicity property of the logarithm of Azukawa pseudometrics of pseudoconvex domains under pseudoconvex variations. We prove that such a property holds for the variation of balanced domains. We also give a non-balanced…

复变函数 · 数学 2018-11-20 Genki Hosono

For a domain $D \subset \mathbb C^n$, the relationship between the squeezing function and the Fridman invariants is clarified. Furthermore, localization properties of these functions are obtained. As applications, some known results…

复变函数 · 数学 2021-01-29 Nikolai Nikolov , Kaushal Verma
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