Kollagunta Gopalaiyer Ramanathan

13 Nov 1920
10 May 1992
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Kollagunta Gopalaiyer Ramanathan (November 13, 1920 – May 10, 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.

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 For several years, he took interest to study Ramanujan’s unpublished and published work.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


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

  • Padma Bhushan, 1983
  • Shanti Swarup Bhatnagar Award, 1965
  • Fellow of Indian Academy of Sciences
  • Fellow of Indian National Science Academy
  • Honorary fellow of 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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