Ambre Chabert

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20232026

most citedWeakly turbulent solution to Schrödinger equation on the two-dimensional torus with real potential decaying at infinity

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math.AP2025

On the { $L^{\infty}$ } norms of spectral projectors on shrinking intervals: the cases of some spheres of revolution and of the Euclidean disk

Ambre Chabert, Yves Colin de Verdìère

Given a compact Riemannian surface $M$ , with Laplace-Beltrami operator $Δ$ , for $λ > 0$ , let $P_{λ, λ^{- \frac{1}{3}}}$ be the spectral projector on the bandwidth $[λ-λ^{-\frac{1}{3}}…

math.SP2025

Bounds for quasimodes with polynomially narrow bandwidth on surfaces of revolution

Ambre Chabert

Given a compact surface of revolution with Laplace-beltrami operator $Δ$ , we consider the spectral projector $P_{λ, δ}$ on a polynomially narrow frequency interval $[λ - δ, λ + δ]$ , whi…

On the {L∞} norms of spectral projectors on shrinking intervals: the cases of some spheres of revolution and of the Euclidean disk

Bounds for quasimodes with polynomially narrow bandwidth on surfaces of revolution

On the { $L^{\infty}$ } norms of spectral projectors on shrinking intervals: the cases of some spheres of revolution and of the Euclidean disk