On the wave equation with a potential

On the wave equation with a potential
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关于势能的波动方程

DOI:
10.1080/03605300008821559
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发表时间:
1999
影响因子:
1.9
通讯作者:
S. Cuccagna
S. Cuccagna
中科院分区:
数学2区
文献类型:
--
作者:
S. Cuccagna

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这个问题通常具有更严格的衰减条件,已被多位作者考虑过,特别是[2]、[3]、[5]、[8]、[9]、[14]和[15]。如果我们在 (0.2) 中用 5 替换 3,我们的结果就是 [14] 的结果(但请注意,对于小势能 [14] 需要比 (0.2) 更少的衰减)。然而,我们的主要观点是提供一个相当自然和基本的论证。为了表述结果,我们需要引入一些符号。考虑运算符-A+ q (x)。在本文中,我们假设 (0.3) 0 既不是特征值,也不是 -A+ q (x) 的共振
This problem, usually with stricter decay conditions, has been considered by various authors, in particular [2],[3],[5],[8],[9],[14] and [15]. Our result is a consequence of [14] if we replace 3 with 5 in (0.2)(notice however that for small potentials [14] requires less decay than (0.2)). Our main point however is to provide a fairly natural and elementary argument. To state the result we need to introduce some notation. Consider the operator-A+ q (x). In this note we will assume that (0.3) 0 is neither an eigenvalue nor a resonance for-A+ q (x)