K. G. Ramanathan

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.

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 For several years, he took interest to study Ramanujan's unpublished and published work.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

• 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