No partial 1-spread of class [0, >=2]d in PG(2d-1, q) exists

Abstract Heden, O., No partial 1-spread of class [0,⩾2] 2 in PG(2 d −1, q ) exists, Discrete Mathematics 87 (1991). We prove that there is no partial spread of class [0,⩾2] 2 in PG(2 d −1, q ).