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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

For a two dimensional bounded pseudoconvex domain of finite type, we prove uniformization theorems via K$\ddot{\operatorname{a}}$hler-Kobayashi metric or K$\ddot{\operatorname{a}}$hler-Carath$\acute{\operatorname{e}}$odory metric with…

复变函数 · 数学 2025-08-28 Lang Wang

We study extremal discs for the Kobayashi metric. Inspired by work of Lempert on strongly convex domains, we present results on strongly pseudoconvex domains. We also consider a useful biholomorphic invariant, inspired by the Kobayashi (and…

复变函数 · 数学 2009-09-08 Steven G. Krantz

A new proof of Oka's lemma is given for smoothly bounded, pseudoconvex domains $D\subset\mathbb{C}^n$. The method of proof is then also applied to other convexity-like hypotheses on the boundary of $D$.

复变函数 · 数学 2013-10-01 A. -K. Herbig , J. D. McNeal

We study the completeness of a metric which is related to the Bergman metric of a bounded domain. We provide a criterion for its completeness in the spirit of the Kobayashi criterion for the completeness of the Bergman metric. In particular…

复变函数 · 数学 2012-10-09 Zywomir Dinew

In this paper, we generalize a recent work of Liu et al. from the open unit ball $\mathbb B^n$ to more general bounded strongly pseudoconvex domains with $C^2$ boundary. It turns out that part of the main result in this paper is in some…

复变函数 · 数学 2016-03-22 Xieping Wang , Guangbin Ren

Let $(\Omega,K_{\Omega})$ be a convex domain in $\mathbb C^d$ with the Kobayashi metric $K_{\Omega}$. In this paper we prove that $m$-convexity is a necessary condition for $(\Omega, K_{\Omega})$ to be CAT(0) if $d=2$. Moreover, when…

复变函数 · 数学 2019-11-18 Jinsong Liu , Hongyu Wang

The precise behavior of the quasi-hyperbolic metric near a $\mathcal C^{1,1}$-smooth part of the boundary of a domain in $\mathbb{R}^n$ is obtained.

度量几何 · 数学 2018-08-14 Nikolai Nikolov , Pascal J. Thomas

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

We show that the Kobayashi pseudometric is well-behaved under resolution of log-terminal singularities. This answers a question of Kamenova and Lehn.

代数几何 · 数学 2025-08-29 Finn Bartsch

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

In this paper we prove necessary and sufficient conditions for the Kobayashi metric on a convex domain to be Gromov hyperbolic. In particular we show that for convex domains with $C^\infty$ boundary being of finite type in the sense of…

复变函数 · 数学 2015-08-24 Andrew M. 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…

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

We discuss the behavior of the Kodaira dimension under smooth morphisms.

代数几何 · 数学 2024-07-15 Osamu Fujino , Taro Fujisawa

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

We consider elliptic equations and systems in divergence form with the conormal or the Robin boundary conditions, with small BMO (bounded mean oscillation) or variably partially small BMO coefficients. We propose a new class of domains…

偏微分方程分析 · 数学 2020-07-24 Hongjie Dong , Zongyuan Li

We refine estimates introduced by Balogh and Bonk, to show that the boundary extensions of isometries between smooth strongly pseudoconvex domains in $\C^n$ are conformal with respect to the sub-Riemannian metric induced by the Levi form.…

复变函数 · 数学 2017-03-02 Luca Capogna , Enrico Le Donne

This paper is a sequel to \cite{Choi} in Math. Ann. In that paper we studied the subharmonicity of K\"ahler-Einstein metrics on strongly pseudoconvex domains of dimension greater than or equal to $3$. In this paper, we study the variations…

复变函数 · 数学 2016-04-19 Young-Jun Choi

Given a pseudoconvex domain U with C^1-boundary in P^n, n>2, we show that if H^{2n-2}_\dR}(U)\not=0, then there is a strictly psh function in a neighborhood of boundary U. We also solve the \dbar-equation in X=P^n\ U, for data smooth (0,1)…

复变函数 · 数学 2020-09-02 Nessim Sibony

We study the semicontinuity of automorphism groups for perturbations of domains in complex space or in complex manifolds. We provide a new approach to the study of such results for domains having minimal boundary smoothness. The emphasis in…

复变函数 · 数学 2011-09-15 Robert E. Greene , Kang-Tae Kim , Steven G. Krantz , AeRyeong Seo