When1: 1825
When2: 1839
Who: Lejeune Dirichlet [Dirichlet, Lejeune]
What: mathematician
Where: Belgium
works\ Lectures on Number Theory [1839]
Detail: He lived 1805 to 1859 and invented Dirichlet series, Dirichlet conditions, and Dirichlet principle or Thomson principle. He studied analytic number theory [1825].
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Date Modified: 2022.0224