Friedrich Julius Richelot
Friedrich Julius Richelot ( born November 6, 1808 in Königsberg i.Pr., † March 31, 1875 ) was a German mathematician and professor in Königsberg.
Life
Richelot visited the old-urban school in Königsberg. In an audit is certified that the 13 - year-old students a good knowledge of the ancient languages , but criticized his poor knowledge of geography and explained his mathematical knowledge for mediocre. Nevertheless, he studied mathematics and astronomy autumn 1825, the parade subjects the Albertus University of Königsberg, and he became a member of the Corps Masovia.
As a student of Carl Gustav Jacob Jacobi, he received his doctorate in 1831, Dr. phil .. The dissertation dealt with the division of the circle into 257 equal parts ( see below). At age 24, in September 1832 he was A.O. Professor. After he had rejected an offer from the Ruprecht -Karls- University, he was appointed in 1843 to the chair of mathematics Königsberg. He took over in the year of Carl Gustav Jacobi (1804 - 1851), the Mathematical Department of the Franz Neumann seminar and helped the seminar with the physicist Franz Ernst Neumann talent incubator ( Gustav Robert Kirchhoff, Arnold Sommerfeld, David Hilbert ). 1848, the students voted him the head of the composite from various student groups of about 300 students armed man. 1858/59 he was vice-rector of the Albertina. The Bavarian Academy of Sciences elected him a corresponding member in 1854, in 1859 he became a foreign member.
Richelot authored numerous publications in German, French and Latin, among them - with his thesis - one of the earliest known instructions for construction of the regular 257 -gon by ruler and compass (1822 published Magnus Georg Paucker to do likewise ). They are held in Göttingen.
1875 as acting professor died of a heart condition, he was buried in the cemetery of scholars (Königsberg ). " Keep your friends close and rewarding students " built Richelots grave stone of dark marble with a bronze circular relief. The cemetery in what is now Kaliningrad was destroyed in 1945.
He married Pauline born Bredschneider. The daughter Clara married in 1857 the physicist Gustav Robert Kirchhoff Königsberg. She died in 1869 at age 35.