a Department of Mathematics, University of Missouri, Columbia, MO 65211, USA b Mathematisches Seminar, Christian-Albrechts-Universität Kiel, Ludewig-Meyn Str. 4, D-24098 Kiel, Germany
Abstract:
The complex Busemann-Petty problem asks whether origin symmetric convex bodies in Cn with smaller central hyperplane sections necessarily have smaller volume. We prove that the answer is affirmative if n?3 and negative if n?4.