Bubbles with constant mean curvature, and almost constant mean curvature, in the hyperbolic space

G. Cora, R. Musina

Given a constant $k>1$, let $Z$ be the family of round spheres of radius $\text{artanh}(k^{-1})$ in the hyperbolic space ${\mathbb{H}}^3$, so that any sphere in $Z$ has mean curvat…