Person: Bachmann (2), Friedrich

Friedrich Bachmann was a German mathematician who specialised in geometry and group theory.

Paul Bachmann is well known as the author of several textbooks in Number Theory and has a biography in this archive.
Friedrich Bachmann attended the Gymnasium in Münster and, after graduating, he studied from 1927 in Berlin and Münster.
After further work on logic, including starting to prepare the correspondence between Gottlob Frege and Bertrand Russell for publication, Bachmann turned to questions on geometry.
Together with Karl-Heinrich Weise, Bachmann had a main share in rebuilding the 'Mathematisches Seminar' at Kiel after the war.
Bachmann's lectures were highly liked and respected for their clarity and for being well structured.
In this book Bachmann develops plane metric geometry by systematic use of reflections and the group of motions generated by them.
Bachmann published an extended and updated second edition of this book in 1973.
Later Bachmann dealt with an extension of his approach to so-called Hjelmslev groups, which is presented in the 1989, posthumously published, book Ebene Spiegelungsgeometrie.
In 1970, in collaboration with Eckart Schmidt, Bachmann had published n-Ecke Ⓣ(n-gons) (an English translation with the title n-gons appeared in 1975).

Born 11 February 1909, Wernigerode, Germany. Died 1 October 1982, Kiel, Germany.

View full biography at MacTutor

Origin Germany

Thank you to the contributors under CC BY-SA 4.0!

O’Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive