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math.DG2008★ 7 cited
Spectrum of the Lichnerowicz Laplacian on asymptotically hyperbolic surfaces
Erwann Delay
We show that, on any asymptotically hyperbolic surface, the essential spectrum of the Lichnerowicz Laplacian contains the ray . If moreover the scalar curvat…
math.DG2006
Minoration conforme du spectre du laplacien de Hodge-de Rham
Pierre Jammes
Let be a n-dimensional compact manifold, with . For any conformal class C of riemannian metrics on M, we set $μ_k^c(M,C)=\inf_{g\in C}μ_{[\frac n2],k}(M,g)\Vol(M,g)^{…