collaborators

7 papers

math.CO2026

Locally Semi-Equitable Colourings of BIBDs

Andrea C. Burgess, William Kellough, David A. Pike

We study -colourings of -BIBDs (balanced incomplete block designs) where, within each block, one colour is absent and each of the other colours appears exa…

math.CO2026

Uniquely 2-colourable 4-cycle decompositions

Andrea C. Burgess, David A. Pike, Shahriyar Pourakbar-Saffar

A cycle system of order is a decomposition of the edges of the complete graph into cycles of a fixed length. A cycle system is said to be -colourable if we can assign…

math.CO2026

Colourings of Uniform Group Divisible Designs and Maximum Packings

Andrea C Burgess, Peter Danziger, Diane Donovan +4

A weak -colouring of a design is an assignment of colours to its points from a set of available colours, such that there are no monochromatic blocks. A colouring of a design…

math.CO2026

A complete solution to the directed Oberwolfach problem of order with cycles of even lengths

A. C. Burgess, P. H. Danziger, A. Lacaze-Masmonteil

The Oberwolfach problem asks for a -factorization of the complete graph in which each -factor is isomorphic to a specific factor . Recently, this problem has been extended…

math.CO2025

Extending Graph Burning to Hypergraphs

Andrea C. Burgess, Caleb W. Jones, David A. Pike

Graph burning is a round-based game or process that discretely models the spread of influence throughout a network. We introduce a generalization of graph burning which applies to…

math.CO2025

Packing Designs with large block size

Andrea C. Burgess, Peter Danziger, Daniel Horsley +1

Given positive integers , , and with , a packing design PD is a pair , where is a -set and is a co…