David and Gregory Chudnovsky

the brothers Chudnovsky are Ukrainian Mathématicien S alive since 1977 with New York close to the Université of Columbia. They are mainly known for their work on π.

Biography

Does the David, oldest of both, discover mathematics with Kiev by reading a book of Richard Courant and H. Robbins entitled What mathematics? This book was very popular, in spite of its prohibition at the time in the USSR and China.

This book encourages David and Gregory to become mathematicians. At 16 years, Gregory publishes in Soviet Mathematics an article concerning the theory of the infinitely long expressions. In 1970, at 17 years, it solves the Tenth problem of Hilbert by proving the indecidability of the equations diophantiennes, shortly after another young mathematician, Matyasevitch, which recognizes that the method of Chudnovsky is better. After having completed their theses at the university of State of Kiev, the Chudnovsky brothers publish articles together.

Gregory is reached of a rare disease involving a degeneration of the muscles. In 1976, the parents of Gregory, Volf and Malke, ask for the Russian authorities the possibility of of emigrating to look after it. They are then regarded as suspects by the KGB: Volf loses its employment, David and Malka is attacked.

Edwin Hewitt, a mathematician of the Université of Seattle, which had collaborated with Gregory in 1976, persuades an influential senator to make pressure on the Russian government. A French parliamentary delegation secretly returns visit in Chudnovsky and, two months later towards the end of 1977, the Russian government yields and lets the family emigrate towards the France, then with the the United States. Chudnovsky settle with New York.

The infirmity of Gregory prevents it from taking a station at the University of Columbia and David refuses to work without his brother. The two brothers are thus members ( senior researcher ) of the university. They work on the Théorie of the numbers and in particular on π.

They built several Superordinateur S, of which the m-zero using a very particular architecture of their design. It enabled them to calculate more than one billion decimals of π.

See too

Related article

External bond

  • The Mountains off pi , article on the Chudnovsky brothers in The New Yorker , March 2nd, 1992

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