Raj Chandra Bose
Raj Chandra Bose ( Bengali: রাজ চন্দ্র বসু, Candra Raj Basu, born June 19, 1901 in Hoshangabad, Madhya Pradesh, † October 31, 1987 in Colorado) was an Indian mathematician and statistician. He was known among other things for his work in the field of coding theory (BCH Code ).
Life
Raj Chandra Bose was born in Hoshangabad in India as the first of five siblings. His father, a doctor, had high hopes for his eldest son and expected very good performance in school. After his parents died early, weighed at the age of 19 years, the responsibility for his younger brothers and sisters to him. Despite these difficult circumstances, he graduated in 1927 from the University of Calcutta degree in mathematics from successful than MA.
In December 1932, Prasanta Chandra Mahalanobis, Director of the newly founded Indian Statistical Institute, aware of the young Bose and brought him to his institute. Bose here lent itself to a fundamental knowledge in the field of statistics.
In 1940 he moved to the University of Calcutta, where he in 1945 Head of the Department of Statistics. At the insistence of his superiors Bose received his doctorate here.
1947 Bose traveled to the United States. He worked as a visiting professor at Columbia University and the University of North Carolina at Chapel Hill and received in that time, many offers. In the face of rising in his homeland burden of administrative tasks he finally emigrated in March 1949 and took a job at the University of North Carolina at Chapel Hill as a professor of statistics au
Here Bose made his famous discoveries. Together with his students SS Shrikhande ( in the 1960 Executive Board of the mathematics faculty at the University of Bombay ), he disproved Euler's conjecture that no mutually orthogonal Latin squares of order 4k 2 exist. They even showed that there are infinitely many such Latin squares. Together with DK Ray - Chaudhuri and A. Hocquenghem he discovered a new method for forward error correction in the transmission technique, named after its discoverers BCH code.
In 1976 he received the highest American award for scientists, he was appointed a Fellow of the American National Academy of Sciences. In 1950 he was invited speaker at the International Congress of Mathematicians (ICM ) in Cambridge (Massachusetts ) ( Mathematical theory of factorial designs).
Works
- On the construction of balanced incomplete block designs, Annals of Eugenics. 9 (1939 ), 358-399.
- Zs with KR Nair: Partially balanced incomplete block designs, Sankhya 4 (1939 ), 337-372.
- Zs with RK Ray - Chaudhuri: On a class of error -correcting binary codes, Information and Control, 3, (1960), 68-79.
- Zs with SS Shrikhande: On the falsity of Euler's conjecture about the non -existence of two orthogonal Latin squares of order 4t 2, Proceedings of the National Academy of Science USA, 45, (1959 ), 734-737.