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user142700
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Topological restrictions from mean curvature bounds

Alexandrov's Theorem says that a compact constant mean curvature hypersurface embedded in $\mathbb{R}^{n+1}$ must be a round sphere.

What happens when the mean curvature is small, or bounded? (For instance, we require that $\frac{\text{max}| \nabla \tau |}{\text{min} |\tau|},$ with $\tau$ the mean curvature, be small or bounded).

Does this condition place topological restrictions on compact surfaces?

(For context, I am led to this question in because of the Einstein constraint equations, where many people have studied solutions with "near constant" mean curvature.)

user142700
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