Workshop Spectral measures

From March to June 2026, I organised a working group for PhD students on spectral measures in Jussieu (Paris). My motivation was to learn about tools for studying the spectral theory of operators with a continuous spectrum, typically the Laplacian on a non-compact manifold.

The workshop resulted in nine presentations, listed below. Thank you once again to everyone who took part!

• 1 - Geodesic flow and spectrum of the Laplacian, Baptiste Dugué, and Spectral measures and distorted Fourier transform, Neba Polneau, 05/03/2026.
• 2 - Continuous functional calculus, Paul Le Breton, 19/03/2026.
• 3,4 - Compact Operators, Marius Nietschmann, 02/04 et 16/04/2026.
• 5 - Unbounded operators, Tristan Humbert, 30/04/2026.
• 6,7 - Functional Calculus & Spectral theorem for self-adjoint unbounded operators, Neba Polneau, 15/05 et 21/05/2026.
• 8,9 - Spectral theory of the Laplacian, Mario Gauvrit, 28/05 et 11/06/2026.