Some new classes of finite parallelisms
Norman Lloyd Johnson · Università del Salento · 2009
Some new constructions of parallelisms in $PG(3,q)$ are given that produce parallelisms consisting of one Desarguesian spread and $q^{2}+q$ derived Knuth semifield spreads and other types consisting of one Knuth semifield spread, one Hall spread and the remaining spreads are derived Knuth semifield spreads.