Mathematisches Institut, Justus-Liebig-Universität Giessen, Arndstrasse. 2, D-6300 Giessen, Federal Republic of Germany;Mathematisches Institut, Freie Universität Berlin, Arnimallee 3, D-1000 Berlin 33, Federal Republic of Germany
Abstract:
Simple proofs are given for Dembowski's theorem characterizing the classical affine designs and for the existence of affine designs with classical parameters but not isomorphic to any affine space.