R. C. Bose and K. A. Bush [1] showed how to make use of the maximum number of points, no three collinear, in finite projective spaces for the construction of orthogonal arrays. In particular, this ...

A question of importance in factor screening is when a two-level orthogonal design for a multifactor experiment can be projected into lower dimension, typically P = 2 or 3. New results relate to the ...