On Unitary Polarities of Finite Projective Planes
نویسنده
چکیده
1. In t roduc t ion . A unitary polarity of a finite projective plane 8P of order q is a polarity 0 having q + 1 absolute points and such that each nonabsolute line contains precisely q + 1 absolute points. Let G{6) be the group of collineations of SP centralizing 6. In [15] and [16], A. Hoffer considered restrictions on G (6) which force SP to be desarguesian. The present paper is a continuation of Hoffer's work. The following are our main results.
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تاریخ انتشار 1971