Abstract
In this work we present an alternative method to build Dulac functions that allow one to discard the existence of periodic solutions for differential equations in the plane using partial differential equations. We give some examples to illustrate applications of these results.
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Osuna, O., Villaseñor, G. On the Dulac Functions. Qual. Theory Dyn. Syst. 10, 43–49 (2011). https://doi.org/10.1007/s12346-011-0036-y
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DOI: https://doi.org/10.1007/s12346-011-0036-y