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The dimension print of most convex surfaces - MaRDI portal

The dimension print of most convex surfaces (Q1358618)

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scientific article; zbMATH DE number 1028890
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The dimension print of most convex surfaces
scientific article; zbMATH DE number 1028890

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    The dimension print of most convex surfaces (English)
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    3 July 1997
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    In order to distinguish convex surfaces \(S\) in \(\mathbb{R}^n\) \textit{C. A. Rogers} [Matematika 35, No. 1, 1-27 (1988; Zbl 0653.28001)] introduced the so-called dimension print, defined by \[ \text{print }S:= \{\alpha= (\alpha_1,\dots, \alpha_n)\in \mathbb{R}^n\mid \alpha\geq 0,\;\mu^\alpha(S)> 0\}, \] where \[ \mu^\alpha(S)= \sup_{\delta> 0} \Biggl(\inf\Biggl\{ \sum^\infty_{\nu= 1} l_1(B_\nu)^{\alpha_1}\cdots l_n(B_\nu)^{\alpha_n} \Biggl|\text{diam } B_\nu\leq\delta,\;\bigcup^\infty_{\nu= 1} B_\nu\supseteq S\Biggr\}\Biggr) \] and \(l_1(B_\nu),\dots, l_n(B_\nu)\) are the non-increasing edge lengths of the box \(B_\nu\) \((\nu= 1,2,\dots)\). Then by \[ d_i(S):= \sup\{\alpha_i\mid (0,\dots, 0,\alpha_i, 0,\dots,0)\in\text{print }S\}\quad (i=1,\dots,n) \] the successive dimensions of \(S\) are given generalizing the usual Hausdorff dimension \(d_1(S)\) of \(S\). The main result of the paper is the fact that most convex surfaces in \(\mathbb{R}^n\) (i.e. all except for a set of first Baire category) have equal dimension print, namely that of a hyperplane.
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    successive dimensions
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    convex surfaces
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    dimension print
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