Giuseppe Melfi
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Giuseppe Melfi (born June 11, 1967) is an Italian mathematician. He got his PhD in mathematics in 1997 at the University of Pisa. After some years spent at the University of Lausanne, he works now at the University of Neuchâtel, where is a lecturer. His major contributions are in the theory of practical numbers, where he proved two conjectures; in modular forms he found new Ramanujan-type identities for the sum-of-divisor functions; other topics of research include sum-free sequences in a joint work with Paul Erdős and other problems in elementary number theory.
