文件名称：高阶奇点的定性研究 (1982年)
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更新时间：2024-05-29 04:42:33
自然科学 论文
We consider in this paper topological classification of singular points of or-dinary differential 'eguations containing as coefficient the linear matrix;which has only one null eigenvalue while the real parts of other eigenvalues are all not null.