Mathematics – Analysis of PDEs
Scientific paper
2012-02-18
Mathematics
Analysis of PDEs
50 pages
Scientific paper
We consider abstract non-negative self-adjoint operators on $L^2(X)$ which satisfy the finite speed propagation property for the corresponding wave equation. For such operators we introduce a restriction type condition which in the case of the standard Laplace operator is equivalent to $(p,2)$ restriction estimate of Stein and Tomas. Next we show that in the considered abstract setting our restriction type condition implies sharp spectral multipliers and endpoint estimates for the Bochner-Riesz summability. We also observe that this restriction estimate holds for operators satisfying dispersive or Strichartz estimates. We obtain new spectral multiplier results for several second order differential operators and recover some known results. Our examples include Schr\"odinger operators with inverse square potentials on $\RR^n$, the harmonic oscillator, elliptic operators on compact manifolds and Schr\"odinger operators on asymptotically conic manifolds.
Chen Peng
Ouhabaz El Maati
Sikora Adam
Yan Lixin
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