Andrea Ossicini
Andrea Ossicini | |
|---|---|
| Known for | Elementary "Eulerian" reformulation of Fermat's Last Theorem |
| Scientific career | |
| Fields | Mathematics (number theory) |
Andrea Ossicini is an independent researcher in mathematics known for proposing an elementary, "Eulerian" reformulation and proof of Fermat's Last Theorem. He is listed in The Worldwide List of Dissident Scientists.
Work
Ossicini works in number theory and has circulated a series of papers arguing that Fermat's Last Theorem can be established by classical, elementary means rather than by the modern machinery of elliptic curves and modular forms used in Andrew Wiles's accepted 1994 proof. His approach reformulates the theorem in terms of Euler's ternary quadratic ("concordant and discordant") forms and Euler's double equations, and applies the method of infinite descent together with Legendre's criterion for the solvability of homogeneous ternary quadratic Diophantine equations, using techniques he characterizes as available by the end of the 18th century.
He presents this line of argument as a recovery of the "spirit" of a proof accessible to Fermat and Euler, framed in works such as "An Eulerian Reformulation of Fermat's Last Theorem" and related essays. The claim that an elementary proof of Fermat's Last Theorem exists lies outside the mainstream view, which regards Wiles's proof (via the modularity theorem) as the established result; independent verification of such elementary reformulations by specialist mathematicians has not been forthcoming.
Ossicini has distributed his work through preprint and academic-sharing platforms including arXiv, ResearchGate, and Academia.edu.