We compute three-term semiclassical asymptotic expansions of counting functions and Riesz-means of the eigenvalues of the Laplacian on spheres and hemispheres, for both Dirichlet and Neumann boundary conditions. Specifically for Riesz-means we prove upper and lower bounds involving asymptotically sharp shift terms, and we extend them to domains of Sd . We also prove a Berezin–Li–Yau inequality for domains contained in the hemisphere S+2 .
Semiclassical Estimates for Eigenvalue Means of Laplacians on Spheres
Buoso D.;Luzzini P.;
2023-01-01
Abstract
We compute three-term semiclassical asymptotic expansions of counting functions and Riesz-means of the eigenvalues of the Laplacian on spheres and hemispheres, for both Dirichlet and Neumann boundary conditions. Specifically for Riesz-means we prove upper and lower bounds involving asymptotically sharp shift terms, and we extend them to domains of Sd . We also prove a Berezin–Li–Yau inequality for domains contained in the hemisphere S+2 .File in questo prodotto:
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