K. G. Ramanathan

Indian mathematician

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K. G. Ramanathan

Born| 13 November 1920

Hyderabad, British India

Died| 10 May 1992 (aged 71)

Bombay, India

Citizenship| Indian
Alma mater| Princeton University
Occupation| Mathematician
Spouse| Jayalakshmi Ramanathan
Awards| Padma Bhushan
Scientific career
Fields| Number theory
Institutions| TIFR
Doctoral advisor| Emil Artin
Doctoral students| C. P. Ramanujam
Kanakanahalli Ramachandra

Kollagunta Gopalaiyer Ramanathan (13 November 1920 – 10 May 1992) was an Indian mathematician known for his work in number theory. His contributions are also to the general development of mathematical research,[1] and teaching in India.

## K. G. Ramanathan's early life and his family

[edit]

K. G. Ramanathan was born in Hyderabad, South India, on 13 November 1920[2] to Sri Kollagunta Gopal Iyer and Smt. Anantalakshmi, and was one of three children in the family.[3]

Ramanathan received his early education from Wesleyan Mission High School in Secunderabad. He further pursued his academic interests in mathematics and obtained a BA degree from Nizam College, Hyderabad, in 1940. Later, in 1942, he completed his master's degree in mathematics from Loyola College in Chennai (then known as Madras). Sources state that Ramanathan's academic journey was also influenced by mathematics teacher and Jesuit priest, Rev Fr. C Racine, who was a former student of the renowned French mathematician E Cartan.[3]

With a keen passion for teaching and research in mathematics, Ramanathan worked as an assistant lecturer at Annamalai University in Chidambaram, Tamil Nadu from 1945 to 1946. He then joined Osmania University, Hyderabad as a lecturer for the following two years. In 1948, he became a research scholar at the University of Madras, where he had the opportunity to work alongside esteemed mathematicians including Professors R Vaidhyanathaswamy and T Vijayraghavan. In the same year, Ramanathan received an invitation to attend the Institute for Advanced Study (IAS) at Princeton. Whilst there, Ramanathan worked alongside Hermann Weyl and Carl Siegel,[4] and is said to have sung Carnatic songs of Tyagaraja to the legendary physicist Albert Einstein, who was Ramanathan's neighbour at the university. Until 1951, along with Emil Artin, Siegel supervised Ramanathan in his PhD studies in mathematics.[3]

Following the successful completion of his PhD, Ramanathan returned to India to team up with K. S. Chandrasekharan at the Tata Institute of Fundamental Research (TIFR) at Colaba in 1951.[5]

Ramanathan was married to Jayalakshmi Ramanathan. He had two sons. His mother died at an early age.

## Career

[edit]

At TIFR, he built up the number theory group of young mathematicians from India. For several years, he took interest to study Ramanujan's unpublished and published work. He was an editorial board member of Acta Arithmetica for over 30 years. He retired from TIFR in 1985.

### Awards

[edit]

Ramanathan was given numerous achievements during his more than 30 years service at TIFR.

* Padma Bhushan, 1983[6]
* Shanti Swarup Bhatnagar Award, 1965
* Fellow of Indian Academy of Sciences
* Fellow of Indian National Science Academy
* Honorary fellow of TIFR.

### Selected publications

[edit]

* On Ramanujan's continued fraction, KG Ramanathan – Acta Arith, 1984
* Some applications of Kronecker’s limit formula, KG Ramanathan – J. Indian Math. Soc, 1987

## References

[edit]

1. ^ Mahbubani, Kishore (2010). The New Asian Hemisphere: The Irresistible Shift of Global Power to the Eas. ReadHowYouWant.com, Limited. p. 3\. ISBN 9781458759610.
2. ^ Indian National Science Academy (1994). Fellows of the Indian National Science Academy N-Z. The Academy. p. 678.
3. ^ a b c Athreya, K. B. (February 2010). "K G Ramanathan". Resonance: Journal of Science Education. 15 (2): 98–101\. doi:10.1007/s12045-010-0022-8. S2CID 120777703.98-101&rft.date=2010-02&rft_id=info:doi/10.1007/s12045-010-0022-8&rft_id=https://api.semanticscholar.org/CorpusID:120777703#id-name=S2CID&rft.aulast=Athreya&rft.aufirst=K.+B.&rft_id=https://dx.doi.org/10.1007/s12045-010-0022-8&rfr_id=info:sid/en.wikipedia.org:K.+G.+Ramanathan" class="Z3988">
4. ^ Narasimhan, M. S. (February 2010). "Reminiscences". Resonance: Journal of Science Education. 15 (2): 101.
5. ^ Bhatia, Rajendra, ed. (2011). Proceedings of the International Congress of Mathematicians: Hyderabad, August 19-27, 2010 · Volume 1. India: Hindustan Book Agency. p. 187\. ISBN 9789814324359.
6. ^ "Padma Awards" (PDF). Ministry of Home Affairs, Government of India. 2015. Archived from the original (PDF) on 15 October 2015. Retrieved 21 July 2015.

## External links

[edit]

* K. G. Ramanathan at the Mathematics Genealogy Project
* Obituary, reproduced from Acta Arithmetica, Author: S. Raghavan
* K. G. R's Photo This is reproduced from Acta Arithmetica 64 (1993) 1-6
* K. G. Ramanathan's Biography

* v
* t
* e

Recipients of Shanti Swarup Bhatnagar Prize for Science and Technology in Mathematical Science

1950s-70s|

* K. S. Chandrasekharan & C. R. Rao (1959)
* K. G. Ramanathan (1965)
* A. S. Gupta & C. S. Seshadri (1972)
* P. C. Jain & M. S. Narasimhan (1975)
* K. R. Parthasarathy & S. K. Trehan (1976)
* M. S. Raghunathan (1977)
* E. M. V. Krishnamurthy (1978)
* S. Raghavan & S. Ramanan (1979)

1980s|

* R. Sridharan (1980)
* J. K. Ghosh (1981)
* B. L. S. Prakasa Rao & J. B. Shukla (1982)
* I. B. S. Passi & Phoolan Prasad (1983)
* S. K. Malik & R. Parthasarathy (1985)
* T. Parthasarathy & U. B. Tewari (1986)
* Raman Parimala & T. N. Shorey (1987)
* M. B. Banerjee & K. B. Sinha (1988)
* Gopal Prasad (1989)

1990s|

* R. Balasubramanian & S. G. Dani (1990)
* V. B. Mehta & A. Ramanathan (1991)
* Maithili Sharan (1992)
* Karmeshu & Navin M. Singhi (1993)
* N. Mohan Kumar (1994)
* Rajendra Bhatia (1995)
* V. S. Sunder (1996)
* Subhashis Nag & T. R. Ramadas (1998)
* Rajeeva Laxman Karandikar (1999)

2000s|

* Rahul Mukerjee (2000)
* Gadadhar Misra & T. N. Venkataramana (2001)
* Dipendra Prasad & S. Thangavelu (2002)
* Manindra Agrawal & V. Srinivas (2003)
* Arup Bose & Sujatha Ramdorai (2004)
* Probal Chaudhuri & K. H. Paranjape (2005)
* Vikraman Balaji & Indranil Biswas (2006)
* B. V. Rajarama Bhat (2007)
* Rama Govindarajan (2007)
* Jaikumar Radhakrishnan (2008)
* Suresh Venapally (2009)

2010s|

* Mahan Mitra & Palash Sarkar (2011)
* Siva Athreya & Debashish Goswami (2012)
* Eknath Prabhakar Ghate (2013)
* Kaushal Kumar Verma (2014)
* K Sandeep & Ritabrata Munshi (2015)
* Amalendu Krishna (2016)
* Naveen Garg (2016)
* (Not awarded) (2017)
* Amit Kumar & Nitin Saxena (2018)
* Neena Gupta & Dishant Mayurbhai Pancholi (2019)

2020s|

* Rajat Subhra Hazra (2020)
* U. K. Anandavardhanan (2020)
* Anish Ghosh (2021)
* Saket Saurabh (2021)
* Apoorva Khare (2022)
* Neeraj Kayal (2022)

* v
* t
* e

Padma Bhushan award recipients (1980–1989)

1980|

* Sunil Gavaskar

1981|

* Vainu Bappu
* Prafulla Desai
* A. P. J. Abdul Kalam
* Gopinath Mohanty
* Prabhat Kumar Mukhopadhyaya
* Amritlal Nagar
* Mrinal Sen
* Avabai Bomanji Wadia

1982|

* Jasbir Singh Bajaj
* S. Balachander
* Gottipati Brahmayya
* Rani Gaidinliu
* Khadim Hussain Khan
* Stella Kramrisch
* Jal Minocher Mehta
* Grace Morley
* Syed Zahoor Qasim
* Kamal Ranadive
* P. N. Pattabhirama Sastri
* Jhabarmal Sharma
* Ajit Ram Verma

1983|

* Richard Attenborough
* Doraiswamy Iyengar
* V. G. Jog
* K. Sankaran Nair
* Prem Nazir
* Swraj Paul, Baron Paul
* Dr. Rajkumar
* K. G. Ramanathan
* Kershasp Tehmurasp Satarawala
* Subodh Chandra Sengupta
* Adi M. Sethna
* Arun Kumar Sharma
* Benudhar Sharma
* Bhalindra Singh
* Umrao Singh

1984|

* Horace Alexander
* Michael Ferreira
* Sivaji Ganesan
* Jnan Prakash Ghosh
* Kotha Satchidananda Murthy
* Hosur Narasimhaiah
* Sripada Pinakapani
* Ishwari Prasad
* B. C. Sanyal
* Marie Seton
* Archana Sharma
* Obaid Siddiqi
* Natwar Singh
* Ganda Singh
* Vijay Tendulkar
* Baldev Upadhyaya

1985|

* Durga Das Basu
* Shiba P. Chatterjee
* Eknath Vasant Chitnis
* Virender Lal Chopra
* Gurbaksh Singh Dhillon
* Santidev Ghosh
* Bhimsen Joshi
* Tribhuvandas Luhar
* Sadat Abul Masud
* Kalanidhi Narayanan
* Bernard Peters
* Thakazhi Sivasankara Pillai
* Gopala Ramanujam
* S. Ramaseshan
* Vuppuluri Ganapathi Sastry
* Amarjit Singh
* Gurbachan Singh Talib
* Bhalchandra Udgaonkar
* Srinivasan Varadarajan

1986|

* Pushpa Mittra Bhargava
* Ela Bhatt
* Manohar Lal Chibber
* Nasir Aminuddin Dagar
* V. Krishnamurthy
* Jean Riboud
* Sidney Dillon Ripley
* Rajeev Sethi
* Martand Singh
* C. Venkataraman Sundaram
* Badri Nath Tandon
* Gulshan Lal Tandon
* R. K. Trivedi

1987|

* Balamani Amma
* Kishori Amonkar
* Nikhil Banerjee
* Roddam Narasimha
* R. D. Pradhan
* Annada Shankar Ray
* Julio Ribeiro
* Man Mohan Sharma
* Laxmi Prasad Sihare
* Farokh Udwadia
* Mohammad Yunus

1988|

* 19th Kushok Bakula Rinpoche
* Ram Prakash Bambah
* Kartar Singh Duggal
* Ashok Sekhar Ganguly
* Abid Hussain
* Shreyans Prasad Jain
* Kelucharan Mohapatra
* Bal Ram Nanda
* Akkineni Nageswara Rao
* Pratury Trirumala Rao
* Renuka Ray
* B. V. Sreekantan
* Satya Pal Wahi

1989|

* Fenner Brockway, Baron Brockway
* Banoo Jehangir Coyaji
* Girija Devi
* K. K. Hebbar
* Girilal Jain
* Anna Rajam Malhotra
* M. V. Mathur
* Ashesh Prosad Mitra
* Russi Mody
* Suresh Shankar Nadkarni
* Narinder Singh Randhawa
* Yoshio Sakurauchi
* Lakshman Singh
* Prakash Narain Tandon

# Posthumous conferral

* 1954–1959
* 1960–1969
* 1970–1979
* 1980–1989
* 1990–1999
* 2000–2009
* 2010–2019
* 2020–2029

Authority control databases

International|

* ISNI
* VIAF
* WorldCat

National|

* Germany
* United States
* Netherlands
* Israel

Academics|

* Mathematics Genealogy Project
* zbMATH
* MathSciNet

People|

* Deutsche Biographie

Other|

* IdRef

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