ABSTRACT
In Chapter 16, we have discussed Andre´ and generalized Andre´ planes, which when the associated semifield is a field, may be defined by spread sets of the fol-
lowing type x = 0, y = 0, y = xp λ(m)
m;m ∈ GF (pr), where λ is a function from GF (pr) to the set of positive integers modulo r. There is a natural way to generalize spreads of this type.
