The heat trace for the drifting laplacian and schrodinger operators on manifolds
Journal article, 2019

We study the heat trace for both Schrodinger operators as well as the drifting Laplacian on compact Riemannian manifolds. In the case of a finite regularity (bounded and measurable) potential or weight function, we prove the existence of a partial asymptotic expansion of the heat trace for small times as well as a suitable remainder estimate. This expansion is sharp in the following sense: further terms in the expansion exist if and only if the potential or weight function is of higher Sobolev regularity. In the case of a smooth weight function, we determine the full asymptotic expansion of the heat trace for the drifting Laplacian for small times. We then use the heat trace to study the asymptotics of the eigenvalue counting function. In both cases the Weyl law coincides with the Weyl law for the Riemannian manifold with the standard Laplace-Beltrami operator. We conclude by demonstrating isospectrality results for the drifting Laplacian on compact manifolds.

Weyl law

Heat trace

Eigenvalue asymptotics

Weighted laplacian

Weyl asymptotic

Drifting laplacian

Schrödinger operator

Author

N. Charalambous

University of Cyprus

Julie Rowlett

Chalmers, Mathematical Sciences, Analysis and Probability Theory

Asian Journal of Mathematics

1093-6106 (ISSN)

Vol. 23 4 539-560

Subject Categories

Energy Engineering

Geometry

Mathematical Analysis

DOI

10.4310/AJM.2019.v23.n4.a1

More information

Latest update

2/14/2020