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# Johan Jensen

Johan Ludwig William Valdemar Jensen, mostly known as Johan Jensen, (May 8, 1859 – March 5, 1925) was a Danish mathematician and engineer.

Jensen is mostly renowned for his famous inequality, Jensen's inequality. In 1915, Jensen also proved Jensen's formula in complex analysis.

**Links**

* O'Connor, John J. & Robertson, Edmund F., "Johan Jensen", MacTutor History of Mathematics archive

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