Kobayashi-Royden vs. Hahn pseudometric in ${\Bbb C}^2$

dc.creatorJarnicki, Witold
dc.date2000-09-25
dc.date2000-10-24
dc.date.accessioned2026-07-07T04:37:41Z
dc.date.available2026-07-07T04:37:41Z
dc.descriptionFor a domain $D\subset{\Bbb C}$ the Kobayashi--Royden $κ$ and Hahn $h$ pseudometrics are equal iff $D$ is simply connected. Overholt showed that for $D\subset{\Bbb C}^n$, $n\geq3$, we have $h_D\equivκ_D$. Let $D_1,D_2\subset{\Bbb C}$. The aim of this paper is to show that $h_{D_1\times D_2}\equivκ_{D_1\times D_2}$ iff at least one of $D_1$, $D_2$ is simply connected or biholomorphic to ${\Bbb C}\setminus\{0\}$. In particular, there are domains $D\subset{\Bbb C}^2$ for which $h_D\not\equivκ_D$.
dc.description5 pages
dc.identifierhttps://arxiv.org/abs/math/0009215
dc.identifierhttp://arxiv.org/abs/math/0009215
dc.identifierAnn. Polon. Math. 75 (2000), 289-294.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/59992
dc.subjectComplex Variables
dc.subject32F45
dc.titleKobayashi-Royden vs. Hahn pseudometric in ${\Bbb C}^2$
dc.typetext

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