I am Willem Noorduin and I have gained a Master`s degree in Mathematics back in the 80`s, where I studied Algebraic Geometry / Topology and Singularity Theory of Complex Curves at leiden University. My fields of interests are: (Algebraic) Topology, 4-manifold theory and exotic manifolds, 4-dimensional Kirby Calculus, Set Theory and Extensions of the Reals (surreals), so that is kind a wide and not really specific. ©