Lp-Boundedness of the Wave Operator for the One Dimensional Schrödinger Operator
Lp-Boundedness of the Wave Operator for the One Dimensional Schrödinger Operator
复制标题
一维薛定谔算子的波算子的 Lp 有界性
DOI:
10.1007/s00220-006-0098-x
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发表时间:
2005
影响因子:
2.4
通讯作者:
L. Fanelli
中科院分区:
文献类型:
--
作者:
P. D’Ancona;L. Fanelli
AbstractGiven a one dimensional perturbed Schrödinger operator H = − d2/dx2 + V(x), we consider the associated wave operators W ± , defined as the strong L2 limits
$$\lim_{s\to\pm\infty}e^{isH}e^{-isH_{0}}$$. We prove that W ± are bounded operators on Lp for all 1 < p < ∞, provided
$$(1+|x|)^{2}V(x)\in L^{1}$$, or else
$$(1+|x|)V(x)\in L^{1}$$ and 0 is not a resonance. For p = ∞ we obtain an estimate in terms of the Hilbert transform. Some applications to dispersive estimates for equations with variable rough coefficients are given.