Algebraically primitive invariant subvarieties with quadratic field of definition
arXiv:2404.10273
Abstract
We show that the only algebraically primitive invariant subvarieties of strata of translation surfaces with quadratic field of definition are the decagon, Weierstrass curves, and eigenform loci in genus two and the rank two example in the minimal stratum of genus four translation surfaces discovered by Eskin-McMullen-Mukamel-Wright.
21 pages, 6 figures. An error was found in Proposition 2.1 that is corrected in this version. The remainder of the paper is unchanged