K. G. Ramanathan

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 and teaching in India.

K. G. Ramanathan
Born13 November 1920
Hyderabad, British India
Died10 May 1992 (aged 71)
Bombay, India
CitizenshipIndian
Alma materPrinceton University
Spouse(s)Jayalakshmi Ramanathan
AwardsPadma Bhushan
Scientific career
FieldsNumber theory
InstitutionsTIFR
Doctoral advisorEmil Artin
Doctoral studentsC. P. Ramanujam
Kanakanahalli Ramachandra

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

K. G. Ramanathan was born in Hyderabad in South India. He completed his B.A. and M.A. in mathematics at Osmania University and the University of Madras respectively before going to Princeton to earn his Ph.D; his advisor was Emil Artin. At Princeton, Ramanathan also worked with Hermann Weyl and Carl Siegel. Thereafter he returned to India to team up with K. S. Chandrasekharan at the Tata Institute of Fundamental Research (TIFR) at Colaba in 1951. At Princeton, for about two years, Ramanathan's neighbour was Albert Einstein, legendary physicist. He used to sing Carnatic songs of Thyagaraja to Einstein for entertainment.

Ramanathan was married to Jayalakshmi Ramanathan. He is survived by two sons. His father's name was Kollagunta Gopal Iyer, and his mother's name was Ananthalaxmi. His mother died at an early age. He had two sisters and one brother.

Career

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 For several years, he took interest to study Ramanujan's unpublished and published work.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

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

Selected publications
  • On Ramanujan’s continued fraction, KG Ramanathan - Acta Arith, 1984
  • Some applications of Kronecker’s limit formula, KG Ramanathan - J. Indian Math. Soc, 1987
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References
  1. "Padma Awards" (PDF). Ministry of Home Affairs, Government of India. 2015. Archived from the original (PDF) on 15 October 2015. Retrieved 21 July 2015.
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