
The author generalizes certain localization results for invariant functions from the case of bounded domains to the general case. The main results are the following two theorems. (1) Let \(D\) be an open set in \(\mathbb C^n\) and let \(z_0\in\partial D\) be a plurisubharmonic antipeak point. Let \(U\) be a neighborhood of \(z_0\) such that the set \(G=D\cap U\) satisfies the following condition (P): \(\lim_{z\to z_0} \inf\{g_G(z,w): w\in G\setminus W\}=0\), for any open neighborhood \(W\) of \(z_0\) with \(G\setminus W\neq\varnothing\), where \(g_G\) is the pluricomplex Green function. Then \(D\) satisfies (P) and there exists a neighborhood \(V\subset U\) of \(z_0\) such that \(\lim_{z\to z_0} \inf\{g_D(z,w)-g_{D\cap V}(z,w): w\in D\cap V\setminus\{z\}\}=0\). In the case where \(D\) is bounded the result was proved by \textit{D. Coman} [Ark. Mat. 36, 341-353 (1998)]. (2) Let \(D\subset\mathbb C^n\) be an open pseudoconvex set, let \(z_0\in\partial D\) be a local peak point, and let \(U\) be a neighborhood of \(z_0\). Then \[ \lim_{z\to z_0}\frac{K_D(z)}{K_{D\cap U}(z)}= \lim_{z\to z_0}\frac{I_D^j(z,X)}{I_{D\cap U}^j(z,X)}= \lim_{z\to z_0}\frac{B_D(z,X)}{B_{D\cap U}(z,X)}= \lim_{z\to z_0}\frac{2-R_D(z,X)}{2-R_{D\cap U}(z,X)}=1 \] locally uniformly in \(\mathbb C^n\setminus\{0\}\), where: \(K_D\) denotes the Bergman kernel, \[ I_D^j(z,X):=\sup\{|\frac 1{j!}f^{(j)}(z)(X)|^2: f\in L^2_h(D),\;\|f\|_{L^2(D)} \leq 1,\;\text{ord}_zf\geq j\}, \] \(B_D(z,X):=(\frac{I_D^1(z,X)}{K_D(z)})^{1/2}\) is the Bergman metric, and \(R_D(z,X):=2-4K_D(z)\frac{I_D^2(z,X)}{(I_D^1(z,X))^2}\) stands for the sectional curvature. The case where \(D\) is additionally bounded was proved by \textit{K. T. Kim} and \textit{J. Yu} [Pac. J. Math. 176, 141-163 (1996; Zbl 0886.32020)].
Invariant metrics and pseudodistances in several complex variables
Invariant metrics and pseudodistances in several complex variables
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 13 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
