Quasi Normal Sectors and Orbits in Regular
Critical Directions of Planar System |
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Authors: | Shimin LI and Yulin ZHAO |
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Institution: | 1. School of Mathematics and Statistics, Guangdong University of Finance and Economics, Guangzhou 510320,China;2. Department of Mathematics, Sun Yat-Sen University, Guangzhou 510275, China |
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Abstract: | This paper deals with the qualitative behavior of orbits at
degenerate singular point with the method of quasi normal sector,
which is a generalization of Frommer''s normal sectors. Several
examples show that this method is more effective than the well-known
methods of $Z$-sectors, normal sectors and generalized normal
sector. |
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Keywords: | Normal sector Generalized normal sector Quasi normal sector |
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