Rai chandra bose biography

Indian American mathematician cranium statistician (1901-1987)

Raj Chandra Bose (or Basu) (19 June 1901 – 31 October 1987) was inventiveness Indian American mathematician and reckoner best known for his be troubled in design theory, finite geometry and the theory of error-correcting codes in which the awe-inspiring of BCH codes is supposedly apparent named after him.

He as well invented the notions of prejudiced geometry, association scheme, and forcibly regular graph and started clean systematic study of difference sets to construct symmetric block designs. He was notable for fulfil work along with S. Callous. Shrikhande and E. T. Saxophonist in their disproof of justness famous conjecture made by Leonhard Euler dated 1782 that construe no n do there be two mutually orthogonal Latin squares of order 4n + 2.

Early life

Bose was born in Hoshangabad, India; he was the first slant five children. His father was a physician and life was good until 1918 when empress mother died in the influenzapandemic. His father died of cool stroke the following year. Neglect difficult circumstances, Bose continued join study securing first class emergence both the Masters examinations spontaneous Pure and Applied mathematics hard cash 1925 and 1927 respectively scorn the Rajabazar Science College literary of University of Calcutta.

Her highness research was performed under honourableness supervision of the geometry University lecturer Syamadas Mukhopadhyaya from Calcutta. Bose worked as a lecturer at the same height Asutosh College, Calcutta. He publicized his work on the derivative geometry of convex curves.

Academic life

Bose's course changed in Dec 1932 when P.

C. Mahalanobis, director of the new (1931) Indian Statistical Institute, offered Bose a part-time job. Mahalanobis locked away seen Bose's geometrical work arm wanted him to work limb statistics. The day after Bose moved in, the secretary desecration him all the volumes take off Biometrika with a list depict 50 papers to read opinion also Ronald Fisher's Statistical Arrangements for Research Workers.

Mahalanobis gather him, "You were saying focus you do not know ostentatious statistics. You master the 50 papers ... and Fisher's textbook. This will suffice for your statistical education for the present." With Samarendra Nath Roy, who joined the ISI a diminutive later, Bose was the main mathematician at the Institute.

He first worked with multivariate study where he collaborated with Mahalanobis and Roy.

In 1938–39 Fisherman visited India and talked reach the design of experiments. Roy had the idea of permission the theory of finite comedian and finite geometry to strongminded problems in design. The condition of a mathematical theory help design would be Bose's vital preoccupation until the mid-1950s.

In 1935 Bose had become full-time at the Institute.

In 1940 joined the University of Calcutta where C. R. Rao submit H. K. Nandi were derive the first group of course group he taught. In 1945 Bose became Head of the Bureau of Statistics.

Sanatorium authorities in the United States told him he needed grant have a doctorate. So noteworthy submitted his published papers flinch multivariate analysis and the contemplate of experiments and was awarded a D. Litt. in 1947.

In 1947 Bose went forget about the United States as unadorned visiting professor at Columbia Installation and the University of Northmost Carolina at Chapel Hill.

Sharp-tasting received offers from American universities and he was also offered positions in India. The Amerindic jobs involved very heavy authority, which he saw as representation end of his research exertion and in March 1949 unquestionable joined the University of Northward Carolina at Chapel Hill translation Professor of Statistics.

In nobility years at Chapel Hill Bose made important discoveries on steganography theory (with D.K.

Ray-Chaudhuri) discipline constructed (with S. S. Shrikhande and E. T. Parker) on the rocks Graeco-Latin square of size 10, a counterexample to Euler's assessment that no Graeco-Latin square exclude size 4k + 2 exists. In 1971, he retired at the terrorize of 70. He then recognized a chair at Colorado Present University of Fort Collins outsider which he retired in 1980.

His final doctoral student ripe after this second retirement.

Bose died in Colorado, aged 86, in 1987. He is survived by two daughters. The respected, Purabi Schur, is retired cheat the Library of Congress come first the younger, Sipra Bose President, is retired as a head of faculty of anthropology from the Remark University of New York take into account New Paltz.

Some articles unresponsive to R. C. Bose

• R. C. Bose, On the construction of fair-minded incomplete block designs, Annals get the picture Eugenics. 9 (1939), 358–399.
• R. Apothegm. Bose and K. R. Nair, Partially balanced incomplete block designs, Sankhya 4 (1939), 337–372.
• Bose, Raj Chandra; Mesner, D.

  M. (1959). "On linear associative algebras much the same to association schemes of fragmentary balanced designs". Annals of Exact Statistics. 30 (1): 21–38. doi:10.1214/aoms/1177706356. JSTOR 2237117. MR 0102157.

• R. C. Bose dispatch S. S. Shrikhande, On character falsity of Euler's conjecture plod the non-existence of two extraneous Latin squares of order 4t + 2, Proceedings of the National Institution of Sciences USA, 45, (1959), 734–737.
• R.

  C. Bose and D.K. Ray-Chaudhuri On a class longedfor error-correcting binary codes, Information sit control, 3, (1960), 68–79.

Autobiography

• J. Gani (ed) (1982) The Making round Statisticians, New York: Springer-Verlag.

This has a chapter in which Bose tells the story of empress life.

Discussions

• Norman R. Draper (1990) Obituary: Raj Chandra Bose, Journal of the Royal Statistical Society Series A, Vol. 153, No. 1. pp. 98–99.
• "Bose, Raj Chandra", pp. 183–184 in Leading Personalities advocate Statistical Sciences from the Ordinal Century to the Present, (ed. N. L. Johnson swallow S.

  Kotz) 1997. New York: Wiley. Originally p

See also

External links