3 problems

Fix a reference isolated hypersurface singularity $f_0$. Let $M^{mar}_\mu$ be the moduli space of marked singularities, $D_{BL}$ the classifying space of marked Brieskorn lattices,…

Let $C$ be a curve of genus $\mathsf g(C)\geq 2$. An $R_4$-configuration is the configuration defined earlier in the paper, and a curve realizes an $R_4$-string when it carries suc…

Let $k=\overline{\mathbb F}_p$ with $p\geq 3$, and let $C$ and $\tilde{C}$ be smooth projective curves over $k$ of genus at least $2$, with Jacobians $J$ and $\tilde{J}$. Suppose t…