Göttingen: Dieterich, 1867. First edition, very rare separately-paginated offprints, of these two landmark papers: Riemann’s celebrated Habilitationsvortrag on the foundations of geometry which “did more to change our ideas about geometry and physical space than any work on the subject since Euclid’s Elements” (Gray, p. 507); bound with his famous..... More
Item #5132

Göttingen: E. A. Huth, 1851. First edition of Riemann’s Dissertation, “one of the most important achievements of 19th century mathematics” (Laugwitz), “which marked a new era in the development of the theory of analytic functions” (Kolmogorov & Yushkevich, p. 199), introducing geometric and topological methods, notably the idea of a ‘Riemann..... More
Item #4286