Multiplicity of focus in cubic systems (Q1901949)
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scientific article; zbMATH DE number 815673
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Multiplicity of focus in cubic systems |
scientific article; zbMATH DE number 815673 |
Statements
Multiplicity of focus in cubic systems (English)
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3 January 1996
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The author points out that in the cubic system \[ \dot x = - y + \sum^3_{i + k = 2} a_{ik} x^iy^k, \quad \dot y = x + \sum^3_{i + k = 2} b_{ik} x^iy^k \] the maximal multiplicity of the focus in \((0,0)\) equals 9.
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cubic system
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multiplicity
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focus
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0.7978752851486206
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0.7916433811187744
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0.7900981307029724
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