Degrees of Genus-Two Split-Jacobian Loci and Humbert-Form Reconstruction

T. Shaska

Let ${\mathcal{L}}_n\subset {\mathcal{M}}_2$ be the locus of genus-two curves admitting a maximal degree-$n$ elliptic subcover, cut out in $\mathbb{P}(2,4,6,10)$ by an irreducible wei…