Jeremy Gray (edit name/settings)

Bibliography

1. (2007)

   Worlds Out of Nothing: A Course in the History of Geometry in the 19th Century (Springer Undergraduate Mathematics Series)

2. Janos Bolyai, Non-Euclidean Geometry, and the Nature of Space

3. Linear Differential Equations and Group Theory from Riemann to Poincare

4. Ideas of Space, Euclidean, Non-Euclidean

5. The Hilbert Challenge