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This work deals with the notion of Newton complementary duality as raisedoriginally in the work of the second author and B. Costa. A conceptual revisionof the main steps of the notion is accomplished which then leads to a vastsimplification and improvement of several statements concerning rational mapsand their images. A ring-homomorphism like map is introduced that allows for aclose comparison between the respective graphs of a rational map and its Newtondual counterpart.

The Newton complementary dual revisited