1 citations · 1 across the 2 of their papers we have counts for
3 papers
math.CO2026
Automorphisms of pentagonal geometries with block size 3
Grahame Erskine, Terry S. Griggs
A pentagonal geometry PENT(k,r) is a k-uniform, r-regular partial linear space with the property that the set of points not collinear with a given point x is itself a line in the g…
math.CO2024
Cycle switching in Steiner triple systems of order 19
Grahame Erskine, Terry S. Griggs
Cycle switching is a particular form of transformation applied to isomorphism classes of a Steiner triple system of a given order (an ), yielding another . This…
math.CO2020★ 1 cited
Colouring problems for symmetric configurations with block size 3
Grahame Erskine, Terry Griggs, Jozef Širáň
The study of symmetric configurations with block size 3 has a long and rich history. In this paper we consider two colouring problems which arise naturally in the study of th…