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16 June 1839 |
Soro, Denmark |
5 Aug 1910 |
Copenhagen, Denmark |
Julius Petersen wrote a series of school and undergraduate texts which achieved international acclaim despite being too difficult for all but the ablest pupils. His thesis treated equations soluble by square roots with applications to ruler and compass constructions. His research was on a wide variety of topic from algebra and number theory to analysis and mechanics. He also wrote on mathematical physics, mathematical economics and cryptography. His most important work however was in geometry and work on regular graphs. A paper which he wrote in 1891 marks the birth of the theory of regular graphs. He is best remembered for the Petersen graph. In it is stated that the work of Petersen and Zeuthen is regarded as being responsible for the emergence of Danish mathematics on the international scene towards the end of the 19th century.
Source:School of Mathematics and Statistics University of St Andrews, Scotland
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