Ramachandran Balasubramanian

Ramachandran Balasubramanian ( born March 15, 1951 in Madras) is an Indian mathematician who deals with number theory and combinatorics.

Balasubramanian graduated from the University of Madras, where in 1970 he earned his bachelor 's degree in 1972 and his master's degree. In 1979 he received his doctorate at the Tata Institute of Fundamental Research in Bombay, which he was a Fellow since 1978. In 1983 he was there, Reader, Associate Professor in 1985 and Professor in 1990. Since 2000 he is Director of the Institute of Mathematical Sciences (IMS ) in Chennai.

In 1986 he determined with Francois Dress, Jean -Marc Deshouillers g (4 ) to 19 in the Waring problem (the minimum number of fourth powers to express any natural number as a sum ). With Kannan Soundararajan he proved in 1995 a conjecture of Ronald Graham from combinatorial number theory.

He is a member of the Indian Academy of Sciences in Bangalore, the Indian National Academy of Science in New Delhi (the prize for young scientists in 1980 he received ) and The National Academy of Sciences in Allahabad. He is president of Crypto Logical Society of India in Kolkata. In 2010 he gave a plenary lecture at the International Congress of Mathematicians in Hyderabad. In 2003 he was awarded the French Ordre National du Mérite, 2006 he was awarded the Padma Shri Shanti Swarup Bhatnagar and 1990 the Prize for Science and Technology. He is a Fellow of the American Mathematical Society.