
Nonfree points for groups generated by a pair of 2x2 matrices

A note on torsion groups generated by pairs of 2x2 rational parabolic matrices

The crystallographic restriction, permutations, and Goldbach's Conjecture

Finite permutation groups with a transitive minimal normal subgroup

Symplectic spreads

Totally Goldbach numbers and related conjectures

Bounds and quotient actions of innately transitive groups

Tight sets and movoids of generalised quadrangles
 Transitive decompositions of graph products: rank 3 product action type

Transitive eggs

Tight sets and movoids of finite polar spaces

Overgroups of cyclic Sylow subgroups of linear groups

A construction of onedimensional affine flagtransitive linear spaces
On this page, you can find PDF versions of old preprints (warning: there may be errors in these old drafts).