Ivar Otto Bendixson
| Ivar Otto Bendixson | |
|---|---|
 |
|
| Born |
August 1, 1861 Djurgårdsbrunn, Sweden |
| Died | November 29, 1935 (aged 74) Sweden |
| Nationality | Swedish |
| Occupation | Mathematician |
| Known for | Poincaré–Bendixson theorem |
Ivar Otto Bendixson (August 1, 1861 – November 29, 1935) was a Swedish mathematician.
Bendixson was born August 1, 1861 in Djurgårdsbrunn, Sweden to a middle-class family. His father Vilhelm Emanuel Bendixson was a merchant, and his mother was Tony Amelia Warburg. On completing secondary education in , he obtained his school certificate on May 25, 1878.
On September 13, 1878 he enrolled to the Royal Institute of Technology in Stockholm. In 1879 Bendixson went to Uppsala University and graduated with the equivalent of a Master's degree on January 27, 1881. Graduating from Uppsala, he went on to study at the newly opened after which he was awarded a doctorate by Uppsala University on May 29, 1890.
On June 10, 1890 Bendixson was appointed as a docent at Stockholm University College. He then worked as an assistant to the professor of mathematical analysis from March 5, 1891 until May 31, 1892. From 1892 until 1899 he taught at the Royal Institute of Technology and he also taught calculus and algebra at Stockholm University College. During this period he married Anna Helena Lind on December 19, 1887. Anna, who was about eighteen months older than Bendixson, was the daughter of the banker Johan Lind.
In 1899 Bendixson substituted for the Professor of Pure Mathematics at the Royal Institute of Technology and then he was promoted to professor there on January 26, 1900. On June 16, 1905 he became professor of higher mathematical analysis at Stockholm University College and from 1911 until 1927 he was its rector.
For his outstanding contributions, Bendixson received many honours including an honorary doctorate on May 24, 1907.
Bendixson became more involved in politics as his career progressed. He was well known for his mild left-wing views and he put his beliefs into practice being head of a committee to help poor students. He served on many other committees and he was an advisor to a committee which investigated a proportional representation voting system in Sweden in 1912-13. In this capacity he was able to make use of his mathematical skills in advising the committee.
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