Carl Friedrich Geiser

Carl Friedrich Geiser (26 February 1843, Langenthal – 7 March 1934, Küsnacht) was a Swiss mathematician, specializing in algebraic geometry.

Since the support from his parents was not sufficient, he gave private lessons to students, some of whom were found for him by Weierstrass and Kronecker.

He pursued graduate studies at the University of Bern with doctorate (Promotion) in 1866 under Ludwig Schläfli with dissertation Beiträge zur synthetischen Geometrie.

[3]In addition to his research results, Geiser's participation in the development of Switzerland's education system is remarkable.

He was helped by his relationships (partly due to his family connection with Jakob Steiner) with eminent politicians and mathematicians.