Flock generalized quadrangles and tetradic sets of elliptic quadrics of PG(3, ::::q::::)

Susan G. Barwick, Matthew R. Brown, Tim Penttila. Flock generalized quadrangles and tetradic sets of elliptic quadrics of PG(3, ::::q::::). Journal of Combinatorial Theory, Series A, 113(2):273-290, 2006. [doi]

Abstract

Abstract is missing.