Erlanger Programm by Rainer Straschill In 1872, Felix Klein presented his Programmschrift Vergleichende Betrachtungen über neuere geometrische Forschungen to describe his intended research focus as part of his tenure as a professor for mathematics at Universität Erlangen. This text is hence known for short as Erlanger Programm. Twelve to the power of two years later, Rainer Straschill presents …