author
Karl Doehlemann
1864–1926
A German mathematician remembered for clear, compact books on projective geometry, geometric transformations, and perspective. He taught in Munich and wrote works that helped make advanced geometry more approachable for students.
1 Audiobook
Grundzüge der Perspektive nebst Anwendungen
by Karl Doehlemann
About the author
Born on April 20, 1864, Karl Doehlemann was a German mathematician whose work centered on geometry. Standard biographical records identify him simply as a mathematician, and several surviving editions of his books show how strongly he focused on projective geometry, geometric transformations, and perspective.
Doehlemann was associated with Munich as a teacher and scholar. Contemporary mathematical publications describe him as an associate professor at the University of Munich, and later writings connect him with the Technical University in Munich as well. His best-known books include Projektive Geometrie in synthetischer Behandlung, Geometrische Transformationen, and Grundzüge der Perspektive nebst Anwendungen.
He died on March 22, 1926. Although he is not widely known outside specialist history of mathematics, his books continued to circulate through major libraries and digital collections, which suggests a lasting value as concise introductions to geometric thinking.