Milner 317

Wednesdays, 12:30-1:30 PM

Texas A&M University

**Wednesday, September 20
Milner 317, 12:30 PM**

**Title:** The three-point
theorem of Belyi

**Abstract:** The purpose of this talk is to discuss two
proofs of the above theorem given by its author, G.V. Belyi. It states
that a complex algebraic curve C may be defined over a number field iff
C is a covering of the projective line ramified only at 0, 1, and
infinity.