Early medieval art, particularly Insular art; the structure of interlace, particularly zoomorphic interlace, in the art of the early med. period.
‘Semantic Underloading: The Lesson of Logs’, Proceedings of the 2nd International Conference on the Teaching of Mathematics (University of Crete, 2002).
‘The 2nd Level – 3rd Level Mathematics Interface’, Mathematics Review (Blackhall, Dublin 1997).
In recent years I have given a number of talks at art history/archaeology seminars for which there are no published proceedings. One of the talks was at the inaugural History of Mathematics conference in Maynooth in 2011. I spoke on the role played by mathematicians during the last century-and-a-half in the history of Insular art (see abstract)