I have been at LSE for more than 20 years. During that period I taught a variety of courses, from large undergraduate ones to specialised PhD courses. I've also undertaken several supportive duties such as Departmental Tutor and MSc Programme Director. Working with our students is one of the most inspiring and enjoyable aspects of working at LSE. Currently my main role is Head of the Department of Mathematics.

My research interests are in discrete mathematics in general, with the focus on graph theory. I am interested in structural properties of classes of graphs (such as planar graphs) and algorithmic aspects of properties of graphs in those classes. I've also published in related areas such as matroid theory.

Although I like to work on problems that are inspired by real-life applications; my research is in general of a pure and abstract nature.

My list of publications can be found via my personal website, and also on Google Scholar.