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20052013
most citedAnalytical approximation schemes for solving exact renormalization group equations in the local potential approximation

40 citations · 99 across the 13 of their papers we have counts for

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math.DS2008

Upper bounds for the number of limit cycles of some planar polynomial differential systems

Armengol Gasull, Hector Giacomini

We give an effective method for controlling the maximum number of limit cycles of some planar polynomial systems. It is based on a suitable choice of a Dulac function and the appli…