2 problems

Let $\overline{M}_{g,n}$ be the moduli space of stable $n$-pointed curves of genus $g$, and let a divisor mean a divisor on this space. A 1-dimensional stratum is a component of th…

Let $X$ be a compact complex manifold, and let $(\eta_{d-1},\eta_{d-2})$ be a pair of cohomology classes. A pair is Hodge-Riemann if it satisfies the Hodge-Riemann relations, and i…