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Journal of Convex Analysis 14 (2007), No. 1, 001--011 Copyright Heldermann Verlag 2007 Convex Bodies with Sheafs of Elliptic Sections II Javier Alonso Dept. of Mathematics, University of Extremadura, 06071 Badajoz, Spain jalonso@unex.es Pedro Martín Dept. of Mathematics, University of Extremadura, 06071 Badajoz, Spain pjimenez@unex.es A convex subset D of Ed is an ellipsoid if all the sections given by hyperplanes are elliptic. We study whether we can restrict the hyperplanes to those that contain one of two fixed linear varieties. In a previous paper in this journal we considered the case where one of the varieties cuts the interior of D, and now we assume that the varieties support D. Keywords: Convex body, elliptic section, ellipsoid. MSC: 52A20, 46C15 [ Fulltext-pdf (1756 KB)] for subscribers only. |