User:Alun Stokes

I currently study number theory at McMaster University, with the two main areas of investigation (amongst two distinct groups) concerning (1) the 4-category equivalence of which most people know the dessin d’enfant and what we may say about particular infinite families of such dessins under the action by the absolute Galois group of Q, and (2) the expressibility of the double parameterisation of discrete metric spaces by their additive Gromov hyperbolicity and the recently introduced multiplicative hyperbolicity. In particular, how these parameters allow for the refinement of error bounds on combinatorial graph problems with asymptotics known only in terms of the additive constant. In all aspects of these problems, I take great interest in crypto-systems that take advantage of so-called ‘trapdoor-functions’ that naturally arise.