Séminaires : Séminaire d'Analyse et Géométrie

Equipe(s) :
Responsables :O. Biquard, A. Deruelle, I. Itenberg, X. Ma
Email des responsables : {olivier.biquard, alix.deruelle, ilia.itenberg, xiaonan.ma}@imj-prg.fr
Salle : 15–25.502
Adresse :Jussieu

Orateur(s) Peng Zhou - IHES,
Titre Interface behavior of Partial Bergman Kernel
Horaire14:00 à 15:00
RésumePartial Bergman kernels are kernels of orthogonal projections onto subspaces of holomorphic sections of the 𝑘-th power of an ample line bundle L over a Kahler manifold M. The subspaces of this talk are spectral subspaces \H𝑘 < E\ of the Toeplitz quantization H𝑘 of a smooth Hamiltonian H ∶ M → R. It is shown that the relative partial density of states converges to the characteristic function of the domain A, where A=\H < E\. Moreover it is shown that this partial density of states exhibits ‘Erf’-asymptotics along the boundary of A, that is, the density profile asymptotically has a Gaussian error function shape interpolating between one and zero. Such ‘erf’-asymptotics are a universal edge effect. This is based on joint work with Steve Zelditch