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On the convergence of formal Dulac series satisfying an algebraic ODE

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 Added by Renat Gontsov
 Publication date 2017
  fields
and research's language is English




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We propose a sufficient condition of the convergence of a Dulac series formally satisfying an algebraic ordinary differential equation (ODE). Such formal solutions of algebraic ODEs appear rather often, in particular, the third, fifth, and sixth Painleve equations possess formal Dulac series solutions, whose convergence follows from the proposed sufficient condition.

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