Erlanger program-an article written by the great mathematician Felix Klein in 1872, in which he outlined his vision of the direction in which the study of geometry should proceed in the years that followed. Klein's key idea was that geometric...

An influential research program and manifesto was published in 1872 by Felix Klein, under the title Vergleichende Betrachtungen über neuere geometrische Forschungen. This Erlangen Program (Erlanger Programm) — Klein was then at Erlangen —...