On Projective Planes of Type (5, m).
On -clan geometry, .
On Representing Sylvester-Gallai Designs.
On some hyperbolic planes from finite projective planes.
On 's and 's admitting a semiregular automorphism group of order 9.
On Subdesigns of Symmetric Designs.
On Subdivisions of Simplicial Complexes: Characterizing Local h-Vectors.
On swell-colored complete graphs.
On the convex hull of projective planes
We study the finite projective planes with linear programming models. We give a complete description of the convex hull of the finite projective planes of order 2. We give some integer linear programming models whose solution are, either a finite projective (or affine) plane of order n, or a (n+2)-arc.
On the history of generalized quadrangles.
On the Non-Existence of Certain M.D.S. Codes and Projective Planes.
On the orbits of Singer groups and their subgroups.
On the rank of random subsets of finite affine geometry
The aim of the paper is to give an effective formula for the calculation of the probability that a random subset of an affine geometry AG(r-1,q) has rank r. Tables for the probabilities are given for small ranks. The expected time to the first moment at which a random subset of an affine geometry achieves the rank r is derived.
On the Structure of Finite Collineation Groups Containing Symmetries of Generalized Quadrangles.
On the theorems of Drake and Lenz.
On translation transversal designs
Orthogonal packings in PG(5, 2).
Parallelism in diagram geometry.
Partial Geometries in Finite Affine Spaces.
Partial Ovoids and Partial Spreads of Classical Finite Polar Spaces
2000 Mathematics Subject Classification: 05B25, 51E20.We survey the main results on ovoids and spreads, large maximal partial ovoids and large maximal partial spreads, and on small maximal partial ovoids and small maximal partial spreads in classical finite polar spaces. We also discuss the main results on the spectrum problem on maximal partial ovoids and maximal partial spreads in classical finite polar spaces.The research of the fourth author was also supported by the Project Combined algorithmic...