On the transformation law for theta-constants
Using the well known isomorphism \(\mathrm{Sp}_4(\mathbb Z/2\mathbb Z)\overset \sim \rightarrow \Sigma_6\) a certain list of data from symplectic geometry is translated equivariantly into the language of permutation groups, i.e. sets with \(\Sigma_6\) action. These data naturally arise in the study of the geometry of the Igusa moduli space of genus 2 and level 2.
scientific article; zbMATH DE number 4010600