2 problems

Let $K$ be the number field, ${\cal P}$ a prime ideal in its ring of integers, and let $\gamma {\Bbb B}_d$ be a polyhedron in the Bianchi decomposition of the orbifold…

Let $n$ be a positive integer and let $V\subseteq\mathbb{A}_{\mathbb{C}}^{n}$ be an algebraic variety. For a subvariety $X\subseteq V$, define its defect by … The subvariety $X$ is…