Eigenvalue asymptotics for weighted Laplace equations on rough Riemannian manifolds with boundary
Journal article, 2021

Our topological setting is a smooth compact manifold of dimension two or higher with smooth boundary. Although this underlying topological structure is smooth, the Riemannian metric tensor is only assumed to be bounded and measurable. This is known as a rough Riemannian manifold. For a large class of boundary conditions we demonstrate a Weyl law for the asymptotics of the eigenvalues of the Laplacian associated to a rough metric. Moreover, we obtain eigenvalue asymptotics for weighted Laplace equations associated to a rough metric. Of particular novelty is that the weight function is not assumed to be of fixed sign, and thus the eigenvalues may be both positive and negative. Key ingredients in the proofs were demonstrated by Birman and Solomjak nearly fifty years ago in their seminal work on eigenvalue asymptotics. In addition to determining the eigenvalue asymptotics in the rough Riemannian manifold setting for weighted Laplace equations, we also wish to promote their achievements which may have further applications to modern problems.


Lashi Bandara

Brunel University London

Medet Nursultanov

The University of Sydney

Julie Rowlett

University of Gothenburg

Chalmers, Mathematical Sciences, Analysis and Probability Theory

Annali della Scuola normale superiore di Pisa - Classe di scienze

0391-173X (ISSN) 20362145 (eISSN)

Vol. 22 4 1843-1878

Geometric analysis and applications to microbe ecology

Swedish Research Council (VR) (2018-03873), 2019-01-01 -- 2022-12-31.

Subject Categories

Computational Mathematics


Mathematical Analysis



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9/1/2022 1