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Research Interests

Last modified: June 21, 2021

I am a mathematician. My main area of research is algebraic combinatorics.

I work mostly with distance-regular graphs. A generalisation of this concept is the concept of an association scheme. I am also interested in error-correcting codes and combinatorial designs. The theory of association schemes (and distance-regular graphs) provides an algebraic approach to codes and designs and this approach has been very successful over the past twenty years. My particular interests lately include the theory of Q-polynomial association schemes and applications of the linear programming bound.

I have a few papers on these subjects.

I once compiled a list of open problems. Please feel free to contact me about these; for example, if one of them is already solved.

I also work in cryptography and am interested in various aspects of quantum information theory.

My other research interests include: theoretical computer science; telecommunications; graph theory; pure mathematics.

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