2 papers
math.CO2021
Fragments in symmetric configurations with block size 3
Grahame Erskine, Terry Griggs, Jozef Širáň
We begin the study of collections of three blocks which can occur in a symmetric configuration with block size 3, . Formulae are derived for the number of occurrences of these…
math.CO2020
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…