2 problems

Let $\Sigma$ be a two-surface with area $A$ and mean curvature $H$, and define its Hawking mass by … Suppose that $\Sigma$ is a stable marginally outer trapped surface (MOTS) with…

Let $\mathcal{A}$ be the set of spherically symmetric marginally trapped spheres, let $v$ be the null coordinate used in the paper, and let $V$ be sufficiently large. Achronality c…