Subbayya Sivasankaranarayana Pillai: Indian mathematician (1901 - 1950) | Biography, Facts, Information, Career, Wiki, Life
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Subbayya Sivasankaranarayana Pillai
Indian mathematician

Subbayya Sivasankaranarayana Pillai

Subbayya Sivasankaranarayana Pillai
The basics

Quick Facts

Intro Indian mathematician
Was Mathematician
From India
Field Mathematics
Gender male
Birth 5 April 1901, Tamil Nadu, India
Death 31 August 1950, Cairo, Cairo Governorate, Egypt (aged 49 years)
Star sign Aries
The details (from wikipedia)


Subbayya Sivasankaranarayana Pillai (1901–1950) was an Nagercoil native Indian mathematician specialising in number theory. His contribution to Waring's problem was described in 1950 by K. S. Chandrasekharan as "almost certainly his best piece of work and one of the very best achievements in Indian Mathematics since Ramanujan".


Subbayya Sivasankaranarayana Pillai was born to parents Subbayya Pillai and Gomati Ammal who were natives of Nagercoil. His mother died a year after his birth and his father when Pillai was in his last year at school.

Pillai did his Intermediate course in the Scott Christian College at Nagercoil and managed to earn a B.A. degree from Maharaja's college, Trivandrum.

In 1927, Pillai was awarded a research fellowship at the University of Madras to work among professors K. Ananda Rau and Ramaswamy S. Vaidyanathaswamy. He was from 1929 to 1941 at Annamalai University where he worked as a lecturer. It was in Annamalai University that he did his major work in Waring's problem. In 1941 he went to the University of Travancore and a year later to the University of Calcutta as a lecturer (where he was at the invitation of Friedrich Wilhelm Levi).

For his achievements he was invited in August 1950, for a year to visit the Institute for Advanced Study, Princeton, USA. He was also invited to participate in the International Congress of Mathematicians at Harvard University as a delegate of the Madras University but he died during the crash of TWA Flight 903 in Egypt on the way to the conference.


He proved the Waring's problem for k 6 {\displaystyle k\geq 6} in 1935 under the further condition of ( 3 k + 1 ) / ( 2 k 1 ) [ 1.5 k ] + 1 {\displaystyle (3^{k}+1)/(2^{k}-1)\leq [1.5^{k}]+1} ahead of Leonard Eugene Dickson who around the same time proved it for k 7. {\displaystyle k\geq 7.}

He showed that g ( k ) = 2 k + l 2 {\displaystyle g(k)=2^{k}+l-2} where l {\displaystyle l} is the largest natural number ( 3 / 2 ) k {\displaystyle \leq (3/2)^{k}} and hence computed the precise value of g ( 6 ) = 73 {\displaystyle g(6)=73} .

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