Jean-Louis Nicolas
Jean-Louis Nicolas is a French number theorist.
He is the namesake (with Paul Erdős) of the Erdős–Nicolas numbers,[1] and was a frequent co-author of Erdős,[2] who would take over the desk of Nicolas' wife Anne-Marie (also a mathematician) whenever he would visit.[3] Nicolas is also known for his research on partitions,[3] and for his unusual proof that there exist infinitely many n for which
where is Euler's totient function and γ is Euler's constant: he proved this bound unconditionally by providing two different proofs, one in the case that the Riemann hypothesis holds and another in the case that it fails.[4]
Nicolas earned his Ph.D. in 1968 as a student of Charles Pisot.[5] He works at Claude Bernard University Lyon 1.[6]
A conference in honor of Nicolas' 60th birthday was held on January 14–19, 2002 at the Centre International de Rencontres Mathématiques in Marseille. The proceedings of the conference were published as a festschrift in The Ramanujan Journal.[7]
References
- ^ De Koninck, Jean-Marie (2009), Those Fascinating Numbers, p. 141, ISBN 978-0-8218-4807-4
- ^ List of collaborators of Erdős by number of joint papers Archived 2008-08-04 at the Wayback Machine, from the Erdős number project web site.
- ^ a b Sárközy, A. (2005), "Jean-Louis Nicolas and the partitions", The Ramanujan Journal, 9 (1–2): 7–17, doi:10.1007/s11139-005-0820-x, MR 2166373, S2CID 119401679.
- ^ Ribenboim, Paulo (1996), The New Book of Prime Number Records, New York: Springer, p. 320, ISBN 0-387-94457-5.
- ^ Jean-Louis Nicolas at the Mathematics Genealogy Project
- ^ Jean-Louis Nicolas, Claude Bernard University Lyon 1, retrieved 2015-01-13.
- ^ Editors (2005), "Preface", The Ramanujan Journal, 9 (1–2): 5, doi:10.1007/s11139-005-0819-3
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