Felix Klein

The last of my life was spent rebuilding the mathematics community in Göttingen. The University of Göttingen used to be the epicenter of all things mathematical in times before I was appointed professor there. We needed to create something that the greats that were there before, like Bernhard Riemann, Carl Fredrich Gauss, and Peter Gustav Lejeune Dirichlet, would be proud to call their grounding place. The founders of Deutsche Mathematiker-Vereingung In 1890, the Deutsche Mathematiker-Vereingung was formed and I was one of the many founders of this group. In English, it means the German Mathematics Society. The founding and planning of this group was mostly lead by George Cantor, another famous mathematician known for inventing set theory. In today's time, the organization awards the Cantor medal to a mathematician who is associated with the German language. Although not formed in Göttingen, this organization exemplifies my want to grow German mathematics in the city. Due t...

Klein disc model in hyperbolic geometry. As I said before, I would love to tell you more about my contributions to math and what I worked on when I was alive. I made achievements in almost all areas of mathematics. My achievements in geometry is something that I have slightly touched on in the previous posting. I created the projective foundation of the non-Euclidean geometries and the Erlanger program. Before my works were published in 1871 and 1873, non-Euclidean geometries were not common knowledge among mathematicians. I was the first mathematician to recognize that hyperbolic, elliptic, and Euclidean geometry can be constructed purely projectively. I based my work on the work of Karl Georg Christian von Staudt. To his work, I added a continuity postulate and sans the use of the distance and angles. The geometries and mathematics have already been discovered and recognized by previous mathematicians, however I created projective models for these geometries. When one speaks o...