Swedish mathematician Lennart Carleson has been named as the winner of the 2006 Abel Prize for outstanding work in the field of mathematics.
The prize is worth about £520,000, and credits a discipline overlooked by the Nobel Prizes.
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In 1807, the French mathematician Jean Baptiste Fourier began the branch of mathematics known as harmonic analysis when he discovered that natural phenomena of a periodic nature, such as electric currents or sound waves, could be described as the sum of simple mathematical building blocks - oscillating sine or cosine waves.
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But for 150 years the approach remained unproven {for the general case}, until in 1966 Professor Carleson published a paper which showed that Fourier's idea held true for all such examples.
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