Steiner systems with automorphism groups PSL(2, 71), PSL(2, 83), and P∑L(2, 35)

Quadruple systems of the projective spec

Quadruple systems of the projective special linear group PSL(2,q), q ≡ 1 (mod 4)

✍ M. S. Keranen; D. L. Kreher; P. J.-S. Shiue 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 124 KB

## Abstract We determine the distribution of quadruple systems among the orbits of 4‐element subsets under the action of PSL(2,q) on the projective line when __q__ ≡ 1 (mod 4). © 2003 Wiley Periodicals, Inc. J Combin Designs 11: 339–351, 2003; Published online in Wiley InterScience (www.interscienc