LET US STUDY THE DIFFERENTIAL SYSTEM:
    x' = -2.0000000000*x^2*y-2.*x*y^2+3.*x^2-y^2-y
    y' = 2.*x^2*y-2.0000000000*x*y^2-2.*y^3-2*x*y+x
AT THE FINITE REGION
(0.,0.) is a weak focus.
V(3)=1.5
The order of weakness is 1
Lyapunov constant is -1.5
We have a stable singularity.
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(-.399992102483895,.345533929655377) is a saddle point.
The ratio between eigenvalues is 7175495:-14087648 (approximation)
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(.674702820150500,.457474517304046) is a saddle point.
The ratio between eigenvalues is 14147292:-18917711 (approximation)
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(1.59262350378389,.805664923761200) is a strong stable focus.
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(-.841492692265812,1.63274357403361) is a stable node.
The ratio between eigenvalues is 61398413:120861645 (approximation)
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(2.10781578188909,-2.80611150880026) is a strong unstable focus.
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