I have several main themes of research. I am generally interested in the theory of Lévy processes and their insertion into a wide variety of (applied) probability models arising in: optimal stopping and stochastic control problems, queuing theory, (numerical) stochastic differential equations and financial and actuarial mathematics. More recently I have been interested in questions pertaining to the (potential) analysis of self-similar Markov processes. I also have broad and active interests in the theory of branching and coalescing structures. These include (spatial) growth properties of branching random walks, branching particle diffusions, superprocesses and continuous-state branching processes, fragmentation processes and stochastic coalescent models.

My interest in these all of these subfields of probability is largely, but not exclusively, motivated by elegant path decompositions. I am also drawn to anything that can be proved in a beautiful way using a martingale.

Educated at the Universities of Oxford and Sheffield, and having held previous academic positions at the London School of Economics, Edinburgh University, Utrecht University and at Heriot Watt University, I came to Bath in 2006. I am the co-founder and current director of of Prob-L@B: the Probability Laboratory at Bath.