National Science Foundation / University of Minnesota / Mathematical Sciences Research Institute / Geometry Center / /
Person
Bernhard Riemann / Felix Klein / Carl Friedrich Gauss / John Wallis / Kl / JAMES W. CANNON / Eugenio Beltrami / WILLIAM J. FLOYD / Henri Poincar / Leonhard Euler / Johann Heinrich Lambert / Bolyai / Schweikart / RICHARD KENYON / /