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A Strichartz Inequality for the Schrödinger Equation on Nontrapping Asymptotically Conic Manifolds
Ist Teil von
Communications in partial differential equations, 2005-04, Vol.30 (1-2), p.157-205
Ort / Verlag
Taylor & Francis Group
Erscheinungsjahr
2005
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We obtain the Strichartz inequality
for any smooth three-dimensional Riemannian manifold (M, g) which is asymptotically conic at infinity and nontrapping, where u is a solution to the Schrödinger equation iu
t
+ (1/2)Δ
M
u = 0. The exponent H
1/4
(M) is sharp, by scaling considerations. In particular our result covers asymptotically flat nontrapping manifolds. Our argument is based on the interaction Morawetz inequality introduced by Colliander et al., interpreted here as a positive commutator inequality for the tensor product U(t, z′, z′′): = u(t, z′)u(t, z′′) of the solution with itself. We also use smoothing estimates for Schrödinger solutions including one (proved here) with weight r
−1
at infinity and with the gradient term involving only one angular derivative.