Rational general solutions of planar rational systems of autonomous ODEs (Q719763)

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scientific article; zbMATH DE number 5956349
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Rational general solutions of planar rational systems of autonomous ODEs
scientific article; zbMATH DE number 5956349

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    Rational general solutions of planar rational systems of autonomous ODEs (English)
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    11 October 2011
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    A method is presented to compute rational solutions of rational systems of ODEs in the form \[ \dot{x}=A(x,y)/B(x,y),\;\;\dot{y}=C(x,y)/D(x,y). \] The method is based mainly on a proper rational parametrization of systems' rational invariant algebraic curves. Also, an algorithm to construct a rational general solution from a given rational first integral of the system is proposed.
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    ordinary differential equations
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    rational solutions
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    invariant algebraic curves
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    rational parametrizations
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    rational first integrals
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