English

Shannon sampling and Weak Weyl's Law on compact Riemannian manifolds

Functional Analysis 2017-08-22 v3

Abstract

The well known Weyl's asymptotic formula gives an approximation to the number Nω\mathcal{N}_{\omega} of eigenvalues (counted with multiplicities) on an interval [0,ω][0,\>\omega] of the Laplace-Beltrami operator on a compact Riemannian manifold M{\bf M}. In this paper we approach this question from the point of view of Shannon-type sampling on compact Riemannian manifolds. Namely, we give a direct proof that Nω\mathcal{N}_{\omega} is comparable to cardinality of certain sampling sets for the subspace of ω\omega-bandlimited functions on M{\bf M}.

Keywords

Cite

@article{arxiv.1703.03052,
  title  = {Shannon sampling and Weak Weyl's Law on compact Riemannian manifolds},
  author = {Isaac Z. Pesenson},
  journal= {arXiv preprint arXiv:1703.03052},
  year   = {2017}
}