4 problems

Let $X$ be the rational threefold, $S$ its Jacobian Kummer surface, $R$ the unique rational normal curve through the six points blown up in constructing $X$, and $PsAut(X)$ the gro…

Let $B$ be a polarized Abelian surface, let $C$ be a hyperelliptic curve, and let $f:C\to B$ be a degree-$1$ morphism with image $\bar{C}$ such that the polarization $[\bar{C}]$ is…

Let $k$ be a number field and let $X$ be a Kummer surface over $k$. A 2-covering associated to $X$ means one of the 2-coverings of the abelian surfaces associated to $X$. Kummer-su…

Let $C$ be a smooth projective curve of genus $2$, let $J(C)$ be its Jacobian, and let $X=Km(J(C))$ be the associated Picard-general Jacobian Kummer surface. A switch is a free inv…