Relating diameter and mean curvature for Riemannian submanifolds

Abstract

Given an $m$-dimensional closed connected Riemannian manifold $M$ smoothly isometrically immersed in an $n$-dimensional Riemannian manifold $N$, we estimate the diameter of $M$ in terms of its mean curvature field integral under some geometric restrictions, and therefore generalize a recent work of Topping in the Euclidean case (Comment. Math. Helv., 83 (2008), 539--546).

arXiv comment8 pages; typos corrected, references added, several explanations also added; to appear in in Proc. Amer. Math. Soc