Passage: Hermann Minkowski (; German: [mɪŋˈkɔfski]; 22 June 1864 – 12 January 1909) was a German mathematician and professor at Königsberg, Zürich and Göttingen. He created and developed the geometry of numbers and used geometrical methods to solve problems in number theory, mathematical physics, and the theory of relativity.

Question: what is Hermann Minkowski known for?
He created and developed the geometry of numbers and used geometrical methods to solve problems in number theory