Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Pure Maths Colloquium: Real Belyi Theory

Presented by Bernhard Koeck, University of Southampton

30 October 2006 16:00 in CM221

Belyi's famous theorem states that a compact Riemann surface can
be defined over a number field if and only if it admits a meromorphic
function with at most three critical values. My talk will be about a
generalization of this theorem to Klein surfaces, i.e. (possibly
non-orientable) surfaces with boundary which carry a dianalytic structure. I
will also explain some other characterizations (triangle groups, maps on
surfaces, ...) David Sigerman and I have obtained.

Contact anna.felikson@durham.ac.uk for more information