We study the complex system ż = F(z) in a neighborhood of a singular point that is a multiple zero or a pole of the function F(z) on the phase plane. We consider trajectories at infinity and construct first integrals of polynomial systems by the Darboux method.
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Translated from Vestnik Novosibirskogo Gosudarstvennogo Universiteta: Seriya Matematika, Mekhanika, Informatika 13, No. 2, 2013, pp. 28–44.
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Volokitin, E.P., Cheresiz, V.M. Singular Points and First Integrals of Holomorphic Dynamical Systems. J Math Sci 203, 605–620 (2014). https://doi.org/10.1007/s10958-014-2162-y
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DOI: https://doi.org/10.1007/s10958-014-2162-y