Abstract
AbstractA Steiner quadruple system of order 2n is Semi‐Boolean (SBQS(2n) in short) if all its derived triple systems are isomorphic to the point‐line design associated with the projective geometry PG(n−1, 2). We prove by means of explicit constructions that for any n, up to isomorphism, there exist at least 2⌊ 3(n−4)/2⌋ regular and resolvable SBQS(2n). © 2003 Wiley Periodicals, Inc. J Combin Designs 11: 229–239, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/jcd.10050
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