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arXiv 1606.08736math.AP
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线上扰动Hamilton算子的Hardy不等式和分数阶Leibnitz定则

Hardy inequality and fractional Leibnitz rule for perturbed Hamiltonians on the line

Vladimir Georgiev, Anna Rita Giammetta

摘要:

我们考虑下面的扰动哈密顿量$\mathcal{H}= -\partial_x^2 + V(x)$在实直线上。势$V(x)$是一个短程型的实值函数.研究了经典齐性Sobolev型空间$\dot{H}^s_p$,$p \in (1,\infty)$与相应的扰动齐性索伯列夫空间的等价性.证明了零不是共振的假设保证了$s = γ- 1 \in [0,1/p)$阶齐次Sobolev范数的扰动和未扰动是等价的。作为推论,相应的波算子使$s \in [0,1/p)$阶的经典齐性索伯列夫空间保持不变。

英文摘要:

We consider the following perturbed Hamiltonian $\mathcal{H}= -\partial_x^2 + V(x)$ on the real line. The potential $V(x)$ is a real - valued function of short range type. We study the equivalence of classical homogeneous Sobolev type spaces $\dot{H}^s_p$, $p \in (1,\infty)$ and the corresponding perturbed homogeneous Sobolev spaces associated with the perturbed Hamiltonian. It is shown that the assumption zero is not a resonance guarantees that the perturbed and unperturbed homogeneous Sobolev norms of order $s = γ- 1 \in [0,1/p)$ are equivalent. As a corollary, the corresponding wave operators leave classical homogeneous Sobolev spaces of order $s \in [0,1/p)$ invariant.

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