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{{Short description|Indian mathematician}} | {{Short description|Indian | ||
mathematician (born 1951)}} | |||
{{Use Indian English|date=August 2015}} | {{Use Indian English|date=August 2015}} | ||
{{Use dmy dates|date=August 2015}} | {{Use dmy dates|date=August 2015}} | ||
[[File: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.jpg|300px|thumb|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]] | [[File: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.jpg|300px|thumb|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 | {{Infobox scientist | ||
| name = Ramachandran Balasubramanian | |||
| image = | |||
| image_size = | |||
| caption = | |||
| birth_date = {{birth date |df=y|1951|3|15}} | |||
| alma_mater = [[University of Bombay]] | |||
| doctoral_advisor = [[K. Ramachandra]] | |||
| doctoral_students = [[Sukumar Das Adhikari]] | |||
| field = [[Analytic Number Theory|Mathematics]] | |||
| work_institution = [[Institute of Mathematical Sciences, Chennai|Institute of Mathematical Sciences]] | |||
}} | |||
'''Ramachandran Balasubramanian''' (born 15 March 1951) is an Indian [[mathematician]] and was Director of the [[Institute of Mathematical Sciences, Chennai|Institute of Mathematical Sciences]] in [[Chennai, India]].<ref>{{cite web|url=http://www.imsc.res.in/about/newpage.html |title=IMSc Brochure |access-date=2009-02-07 |url-status=dead |archive-url=https://web.archive.org/web/20090310004308/http://www.imsc.res.in/about/newpage.html |archive-date=10 March 2009 }}</ref> He is known for his work in [[number theory]], which includes settling the final g(4) case of [[Waring's problem]] in 1986.<ref>Balasubramanian, Ramachandran; [[Jean-Marc Deshouillers|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</ref><ref>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</ref> He is also known for his work in [[Cryptography]] which includes his famous work with Koblitz, now commonly called the ''Balu-Koblitz Theorem''.<ref>{{Cite journal |last=Balasubramanian |first=R. |last2=Koblitz |first2=Neal |date=March 1998 |title=The Improbability That an Elliptic Curve Has Subexponential Discrete Log Problem under the Menezes—Okamoto—Vanstone Algorithm |url=http://dx.doi.org/10.1007/s001459900040 |journal=Journal of Cryptology |volume=11 |issue=2 |pages=141–145 |doi=10.1007/s001459900040 |issn=0933-2790}}</ref> His work in [[Arithmetic combinatorics|Additive Combinatorics]] includes his two page paper on additive complements of squares, hence disproving a long standing conjecture of [[Paul Erdős|Erdős]].<ref>{{Cite journal |last=Balasubramanian |first=R |date=1988-05-01 |title=On the additive completion of squares |url=https://linkinghub.elsevier.com/retrieve/pii/0022314X88900893 |journal=Journal of Number Theory |volume=29 |issue=1 |pages=10–12 |doi=10.1016/0022-314X(88)90089-3 |issn=0022-314X|url-access=subscription }}</ref><!--, proving that there are only finitely many solutions to [[Goormaghtigh conjecture|a conjecture by Goormaghtigh]]--><!--I don't know if this is actually notable or just happens to have a Wikipedia article about it--> | |||
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.<ref name="ias">{{cite web | 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.<ref name="ias">{{cite web | ||
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|df = dmy-all | |df = dmy-all | ||
}}</ref> | }}</ref> | ||
He was a student of [[Kanakanahalli Ramachandra|K. Ramachandra]], a lifelong collaborator of [[Jean-Marc Deshouillers]], and co-authored stellar mathematicians like [[M. Ram Murty|Ram Murty]], [[V. Kumar Murty|Kumar Murty]], [[Roger Heath-Brown|Heath-Brown]], [[Neal Koblitz|N. Koblitz]] and [[Florian Luca|F. Luca]]. He was the founder and remains a member of the advisory board of the [[Hardy-Ramanujan Journal]]. | |||
==Awards and honours== | ==Awards and honours== | ||
He has received the following awards: | He has received the following awards: | ||
*The [[Shanti Swarup Bhatnagar Prize for Science and Technology]] in 1990 | *The [[Shanti Swarup Bhatnagar Prize for Science and Technology]] in 1990. | ||
*The French government's [[Ordre National du Mérite]] for "furthering Indo-French cooperation in the field of mathematics" in 2003.<ref>{{cite news| url=http://timesofindia.indiatimes.com/articleshow/36596631.cms | work=The Times Of India | title=French honour mathematician Balasubramanian | date=5 February 2003}}</ref> | *The French government's [[Ordre National du Mérite]] for "furthering Indo-French cooperation in the field of mathematics" in 2003.<ref>{{cite news| url=http://timesofindia.indiatimes.com/articleshow/36596631.cms | work=The Times Of India | title=French honour mathematician Balasubramanian | date=5 February 2003}}</ref> | ||
*The [[Padma Shri Awards (2000-2009)#2006|Padma Shri]], the fourth highest civilian award in India, in 2006.<ref>{{cite web|url=http://india.gov.in/myindia/padmashri_awards_list1.php|title=India at a Glance|work=india.gov.in|access-date=4 March 2015}}</ref> | *The [[Padma Shri Awards (2000-2009)#2006|Padma Shri]], the fourth highest civilian award in India, in 2006.<ref>{{cite web|url=http://india.gov.in/myindia/padmashri_awards_list1.php|title=India at a Glance|work=india.gov.in|access-date=4 March 2015}}</ref> | ||
*Fellow of the [[American Mathematical Society]], 2012.<ref>[https://www.ams.org/profession/fellows-list List of Fellows of the American Mathematical Society], retrieved 2012-11-03.</ref> | *Fellow of the [[American Mathematical Society]], 2012.<ref>[https://www.ams.org/profession/fellows-list List of Fellows of the American Mathematical Society], retrieved 2012-11-03.</ref> | ||
*The [http://www.rediff.com/news/report/pm-honours-four-n-scientists-with-lifetime-achievement-awards/20130115.htm Lifetime Achievement Award, 2013] awarded by Manmohan Singh, the Prime Minister of India.<ref>{{cite web|url=http://www.rediff.com/news/report/pm-honours-four-n-scientists-with-lifetime-achievement-awards/20130115.htm|title=PM honours 4 N-scientists with lifetime achievement awards|date=15 January 2013|work=rediff.com|access-date=4 March 2015}}</ref> | *The [http://www.rediff.com/news/report/pm-honours-four-n-scientists-with-lifetime-achievement-awards/20130115.htm Lifetime Achievement Award, 2013] awarded by Manmohan Singh, the Prime Minister of India.<ref>{{cite web|url=http://www.rediff.com/news/report/pm-honours-four-n-scientists-with-lifetime-achievement-awards/20130115.htm|title=PM honours 4 N-scientists with lifetime achievement awards|date=15 January 2013|work=rediff.com|access-date=4 March 2015}}</ref> | ||
*Fellow of the [[Indian National Science Academy]] (1988)<ref name="Indian Fellow">{{cite web | url=http://www.insaindia.org.in/detail.php?id=N88-0985 | title=Indian Fellow | publisher=INSA | date=2016 | access-date=May 13, 2016}}</ref> | *Fellow of the [[Indian National Science Academy]] (1988)<ref name="Indian Fellow">{{cite web | url=http://www.insaindia.org.in/detail.php?id=N88-0985 | archive-url=https://web.archive.org/web/20160813010804/http://www.insaindia.org.in/detail.php?id=N88-0985 | url-status=usurped | archive-date=13 August 2016 | title=Indian Fellow | publisher=INSA | date=2016 | access-date=May 13, 2016}}</ref> | ||
==References== | ==References== | ||
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* [http://www.imsc.res.in/~balu/balucv.pdf His CV] | * [http://www.imsc.res.in/~balu/balucv.pdf His CV] | ||
{{Padma Shri Award Recipients in Science & Engineering}} | {{2000s Padma Shri Award Recipients in Science & Engineering}} | ||
{{SSBPST recipients in Mathematical Science}} | {{SSBPST recipients in Mathematical Science}} | ||
{{Shanti Swarup Bhatnagar Laureates of Tamil Nadu}} | {{Shanti Swarup Bhatnagar Laureates of Tamil Nadu}} | ||
Latest revision as of 20:44, 23 November 2025
Ramachandran Balasubramanian | |
|---|---|
| Born | 15 March 1951 |
| Alma mater | University of Bombay |
| Scientific career | |
| Fields | Mathematics |
| Institutions | Institute of Mathematical Sciences |
| Doctoral advisor | K. Ramachandra |
| Doctoral students | Sukumar Das Adhikari |
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[edit | edit source]
He has received the following awards:
- The Shanti Swarup Bhatnagar Prize for Science and Technology in 1990.
- The French government's Ordre National du Mérite for "furthering Indo-French cooperation in the field of mathematics" in 2003.[7]
- The Padma Shri, the fourth highest civilian award in India, in 2006.[8]
- Fellow of the American Mathematical Society, 2012.[9]
- The Lifetime Achievement Award, 2013 awarded by Manmohan Singh, the Prime Minister of India.[10]
- Fellow of the Indian National Science Academy (1988)[11]
References[edit | edit source]
- ↑ "IMSc Brochure". Archived from the original on 10 March 2009. Retrieved 7 February 2009.
- ↑ 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
- ↑ 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
- ↑ 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.
- ↑ 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.
- ↑ "Community of Scholars Profile: Balasubramanian, R." Institute for Advanced Study. Archived from the original on 25 November 2015. Retrieved 27 September 2012.
- ↑ "French honour mathematician Balasubramanian". The Times Of India. 5 February 2003.
- ↑ "India at a Glance". india.gov.in. Retrieved 4 March 2015.
- ↑ List of Fellows of the American Mathematical Society, retrieved 2012-11-03.
- ↑ "PM honours 4 N-scientists with lifetime achievement awards". rediff.com. 15 January 2013. Retrieved 4 March 2015.
- ↑ "Indian Fellow". INSA. 2016. Archived from the original on 13 August 2016. Retrieved 13 May 2016.
External links[edit | edit source]
Template:2000s Padma Shri Award Recipients in Science & Engineering