A small number of books may be downloaded without payment from the following sites:
Daniel Gorenstein, Richard Lyons, and Ronald Solomon, The Classification of the Finite Simple Groups, American Mathematical Society, 1994, 165pp.
Victor Guillemin and Shlomo Sternberg,
Geometric Asymptotics, American Mathematical Society, 1977, 480 pp.
Proceedings of the 7th International Conference on Differential Geometry and Applications, Brno, Czech Republic, August 10-14, 1998
Peter B. Gilkey: Invariance Theory, the Heat Equation, and the Atiyah-Singer Index Theorem, Publish or Perish Inc., USA, 1984
Georg Friedrich Bernhard Riemann (1826-1866): Mathematical Papers, Transcribed and edited by David R. Wilkins. Published 2000 by ELibM.
Classical monographs (GDZ) (click "Monographs")
General advice on finding free books: in cases where the author holds the copyright, books might be available from the home page of the author. In all cases it is worth checking the author's home page for information on the book, extracts or sample chapters, and corrections.
|No payment required|
|Availability depends on subscription etc.|