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JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

Sets of Type (a, b) From Subgroups of Γ L(1, pR)

Nicholas Hamilton and Tim Penttila

DOI: 10.1023/A:1008775818040

Abstract

In this paper k-sets of type ( a, b) with respect to hyperplanes are constructed in finite projective spaces using powers of Singer cycles. These are then used to construct further examples of sets of type ( a, b) using various disjoint sets. The parameters of the associated strongly regular graphs are also calculated. The construction technique is then related to work of Foulser and Kallaher classifying rank three subgroups of A Gamma L(1, p R). It is shown that the sets of type ( a, b) arising from the Foulser and Kallaher construction in the case of projective spaces are isomorphic to some of those constructed in the present paper.

Pages: 67–76

Keywords: $k$-set of type $( a; b)$; singer cycle; strongly regular graph

Full Text: PDF

References

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