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※ 半角英数字
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特異点解析

Singular point analysis

徳田 伸二

Tokuda, Shinji

トロイダルプラズマの安定性解析の方法に関して、その最近の発展について入門的な解説を行った。臨界安定が連続スペクトルの端点になっている磁気流体力学系における摂動解析に、特に、力点をおき、そのような問題に適切な漸近接続法に注目する。そこではNewcomb方程式と内部層方程式が本質的な役割を果し、それらの数値計算法を議論する。

An introductory review is given on recent developments in the methods for stability analysis of a toroidally confined plasma. Emphasis is put on the perturbation analysis of a magnetohydrodynamic system that has the marginally stable state as a terminal point of continuous spectra. We address ourselves to the asymptotic matching method pertinent to such a problem. The Newcomb equation and inner-layer equations are essential ingredients in the methods and the numerical methods for solving them are discussed.

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