On $(q^2+q+1)$-Sets of Plane-Type $(m, n, r)_2$ in $\mathrm{PG}(3, q)$
On $(q^2+q+1)$-Sets of Plane-Type $(m, n, r)_2$ in $\mathrm{PG}(3, q)$
In this paper (q2+q+1)(q2+q+1)-sets of points in PG(3,q)PG(3,q) of type (m,n,r)(m,n,r) with respect to planes are studied, and as a by-product for qq odd a characterization of quadratic cones is obtained.
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