2 problems

Let $X$ be an irreducible holomorphic symplectic manifold of dimension $2n$, and let $Y$ be a smooth ample hypersurface in $X$. A subvariety $Z\subset Y$ is coisotropic when its ta…

Let $X$ be a projective hyper-Kähler manifold of dimension $2n$. For $i\leq n$, call a degree-$2i$ cohomology class coisotropic if it satisfies the coisotropic condition defined by…