On the Collineation Groups of Derived Semifield Planes.
On the computation of resolvents and Galois groups.
On the orbits of Singer groups and their subgroups.
On the proof of a theorem of Pálfy.
On the Structure of Finite Collineation Groups Containing Symmetries of Generalized Quadrangles.
and line-transitive linear spaces.
(3) as a symmetric (36, 15, 6)-design
Parity of orthogonal automorphisms
Parity of orthogonal permutations
Partial line graph operator and half-arc-transitive group actions
Pointwise periodic groups
Polarities of G. Higman's symmetric design and a strongly regular graph on 176 vertices.
Polynomial Automorphisms Over Finite Fields
It is shown that the invertible polynomial maps over a finite field Fq , if looked at as bijections Fn,q −→ Fn,q , give all possible bijections in the case q = 2, or q = p^r where p > 2. In the case q = 2^r where r > 1 it is shown that the tame subgroup of the invertible polynomial maps gives only the even bijections, i.e. only half the bijections. As a consequence it is shown that a set S ⊂ Fn,q can be a zero set of a coordinate if and only if #S = q^(n−1).
Proof of Verma's Conjecture on Weyl's Dimension Polynomial.
Ramanujan-Identitäten zur Reziproken der Jacobischen Funktion .. .
Realisierung endlicher Gruppen als Galoisgruppen.
Realisierung von Gruppen PSL2 (IFp) als Galoisgruppen über Q.
Reflection Groups and Orthogonal Polynomials on the Sphere.
Regular Polytopes from Twisted Coxeter Groups.
Relative Invarianten und nicht-assoziative Algebren.