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La geometria degli origami e la risoluzione delle equazioni algebriche

Maria Teresa Borgato, Rudy Salmi


This article presents the history of origami geometry, with particular focus on the paper folding methods that allow the resolution of algebraic equations. The origins are to be found in the work by Sundara Row, a little known Indian mathematician of the late nineteenth century, who was the first to publish a manual of elementary geometry using paper folding as the basic tool . This work became a subject of study for some western mathematicians, among whom Margherita Beloch, Professor of geometry at the University of Ferrara from 1927 to 1954. Beloch’s original contributions , on the resolution of a cubic by folding, initiated a significant development in the latest research on mathematical origami, like the axiomatic arrangement proposed by Huzita and the theory of alignments by Alperin and Lang, which leads to the resolution of algebraic equations of any degree through a readaptation of the origami
methods proposed by Beloch.

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