Thomas Schürmann

Variance-Refined In-Diameter Lower Bound for the First Dirichlet Eigenvalue

Let [Formula: see text] be a compact [Formula: see text]-dimensional Riemannian manifold with nonempty boundary. Assume that [Formula: see text] for some [Formula: see text] and that [Formula: see text] has nonnegative mean curvature with respect to the outward unit normal. Denot...