On parallel hypersurfaces in the elliptic and hyperbolic $n$-dimensional space
نویسندگان
چکیده
منابع مشابه
On the Isoptic Hypersurfaces in the n-Dimensional Euclidean Space
The theory of the isoptic curves is widely studied in the Euclidean plane E2 (see [1] and [13] and the references given there). The analogous question was investigated by the authors in the hyperbolic H2 and elliptic E2 planes (see [3], [4]), but in the higher dimensional spaces there is no result according to this topic. In this paper we give a natural extension of the notion of the isoptic cu...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1950
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1950-0036532-6