Abstract
It is proved that, in any generalized quadrangle with parameters (q,q**2), the graph associated with a hemisystem is strongly regular. Orthogonal configurations over a finte group are defined, and their main properties are studied. Optimal dissipative conference matrices of order 4k minus 1 are characterized.
Original language | English |
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Pages (from-to) | 147-162 |
Number of pages | 16 |
Journal | Philips Journal of Research |
Volume | 34 |
Issue number | 3-4 |
Publication status | Published - 1 Dec 1979 |