Séminaire Lotharingien de Combinatoire, B39f (1997), 20pp.
Helmut Krämer
Inversion of Incidence Mappings
Abstract.
The paper proposes a new technique for calculating the inverses of
incidence matrices extending a work by Craver and Jurkat.
Mathematisches Seminar der Universität Hamburg,
Bundesstrasse 55, D-20146 Hamburg
Received: June 30, 1998; Accepted: December 14, 1998.
The following versions are available: