Spectral theory for singular Riemannian metrics

par Charlotte Dietze (CNRS, LJLL)

mardi 3 mars 2026, 11:00 → 13:00 Europe/Paris

We prove eigenvalue asymptotics and concentration of eigenfunctions of the Laplace-Beltrami operator for certain singular Riemannian metrics. This is motivated by the study of propagation of sound waves in gas planets. The talk is based on joint works with Yves Colin de Verdière, Maarten de Hoop and Emmanuel Trélat, and with Larry Read.