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arXiv math-ph/0406058math-phmath.MP
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临界能级上薛定谔算子的半经典谱估计。退化势的情形

Semiclassical spectral estimates for Schrödinger operators at a critical energy level. Case of a degenerate potential

Brice Camus

摘要:

研究了$\mathbb{R}^{n}$上薛定谔算子在临界能级处的半经典迹公式.这里我们假设势有一个与局部极小值相关联的完全退化的临界点。主要结果计算了该平衡的贡献,在紧致空间中对所有时间都有效,并建立了总渐进展开式的存在性,其最高阶系数仅取决于临界点处势的芽。

英文摘要:

We study the semi-classical trace formula at a critical energy level for a Schrödinger operator on $\mathbb{R}^{n}$. We assume here that the potential has a totally degenerate critical point associated to a local minimum. The main result, which computes the contribution of this equilibrium, is valid for all time in a compact and establishes the existence of a total asymptotic expansion whose top order coefficient depends only on the germ of the potential at the critical point.

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