Estimates for eigensections of Riemannian vector bundles

Abstract

We derive a bound on the $L^{\infty }$-norm of the covariant derivative of Laplace eigensections on general Riemannian vector bundles depending on the diameter, the dimension, the Ricci curvature of the underlying manifold, and the curvature of the Riemannian vector bundle. Our result implies that eigensections with small eigenvalues are almost parallel.

arXiv comment13 pages, comments are welcome

References in corpus (1)

• Manifolds with small Dirac eigenvalues are nilmanifolds