paper

Real geometric transcendence for uniformization maps of algebraic Riemann surfaces

arXiv:2508.14645

Abstract

Let be a smooth connected complex algebraic curve that is not simply connected, and let be the universal cover of . We study the set of irreducible real algebraic curves in (seen as a real algebraic surface) containing the image of an arc of a real algebraic curve in . In particular, we give necessary and sufficient conditions on in order for this set to be non-empty or infinite, and we describe the set explicitly when is projective of genus one, or is hyperbolic and its fundamental group is arithmetic.

We have updated Section 2 and added Sections 3 and 4; the title, abstract and introduction have been modified accordingly