Ramachandran Balasubramanian

The President, Dr. A.P.J. Abdul Kalam presenting Padma Shri to Prof. Ramachandran Balasubramanian, Director of Institute of Mathematical Science, at investiture ceremony in New Delhi on March 29, 2006

Ramachandran Balasubramanian (born 15 March 1951) is an Indian mathematician and was Director of the Institute of Mathematical Sciences in Chennai, India.[1] He is known for his work in number theory, which includes settling the final g(4) case of Waring's problem in 1986.[2][3] He is also known for his work in Cryptography which includes his famous work with Koblitz, now commonly called the Balu-Koblitz Theorem.[4] His work in Additive Combinatorics includes his two page paper on additive complements of squares, hence disproving a long standing conjecture of Erdős.[5]

His works on moments of Riemann zeta function is highly appreciated and he was a plenary speaker from India at ICM in 2010. He was a visiting scholar at the Institute for Advanced Study in 1980-81.[6]

He was a student of K. Ramachandra, a lifelong collaborator of Jean-Marc Deshouillers, and co-authored stellar mathematicians like Ram Murty, Kumar Murty, Heath-Brown, N. Koblitz and F. Luca. He was the founder and remains a member of the advisory board of the Hardy-Ramanujan Journal.

Awards and honours

He has received the following awards:

References

  1. ^ "IMSc Brochure". Archived from the original on 10 March 2009. Retrieved 7 February 2009.
  2. ^ Balasubramanian, Ramachandran; Deshouillers, Jean-Marc; Dress, François, Problème de Waring pour les bicarrés. I. Schéma de la solution. (French. English summary) [Waring's problem for biquadrates. I. Sketch of the solution] Comptes Rendus de l'Académie des Sciences, Série I 303 (1986), no. 4, pp. 85-88
  3. ^ Balasubramanian, Ramachandran; Deshouillers, Jean-Marc; Dress, François, Problème de Waring pour les bicarrés. II. Résultats auxiliaires pour le théorème asymptotique. (French. English summary) [Waring's problem for biquadrates. II. Auxiliary results for the asymptotic theorem] Comptes Rendus de l'Académie des Sciences, Série I 303 (1986), no. 5, pp. 161-163
  4. ^ Balasubramanian, R.; Koblitz, Neal (March 1998). "The Improbability That an Elliptic Curve Has Subexponential Discrete Log Problem under the Menezes—Okamoto—Vanstone Algorithm". Journal of Cryptology. 11 (2): 141–145. doi:10.1007/s001459900040. ISSN 0933-2790.
  5. ^ Balasubramanian, R (1 May 1988). "On the additive completion of squares". Journal of Number Theory. 29 (1): 10–12. doi:10.1016/0022-314X(88)90089-3. ISSN 0022-314X.
  6. ^ "Community of Scholars Profile: Balasubramanian, R." Institute for Advanced Study. Archived from the original on 25 November 2015. Retrieved 27 September 2012.
  7. ^ "French honour mathematician Balasubramanian". The Times Of India. 5 February 2003.
  8. ^ "India at a Glance". india.gov.in. Retrieved 4 March 2015.
  9. ^ List of Fellows of the American Mathematical Society, retrieved 2012-11-03.
  10. ^ "PM honours 4 N-scientists with lifetime achievement awards". rediff.com. 15 January 2013. Retrieved 4 March 2015.
  11. ^ "Indian Fellow". INSA. 2016. Archived from the original on 13 August 2016. Retrieved 13 May 2016.

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