| Call number | Item |
| Q | Science (Go to start of category) |
| QA | Mathematics and Computer Science (Go to start of category) |
| QA612 .H42 2002 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Algebraic Topology (c2002), by Allen Hatcher (PDF files with commentary at Cornell) |
| QA612 .M387 | A Concise Course in Algebraic Topology (electronic edition, with errata corrected), by J. Peter May (PDF at Chicago) |
| QA612.2 .R363 2010 | High Dimensional Knot Theory (electronic edition, 2010), by Andrew Ranicki (PDF in the UK) |
| QA612.3 | Exotic Homology Manifolds, Oberwolfach 2003 (prepublication version, ca. 2006), ed. by F. Quinn and Andrew Ranicki (PDF in the UK) |
| QA612.3 | Homology, Homotopy and Applications (volumes more than 4 years old are free to read) (partial serial archives) |
| QA612.33 .R46 2001 | Lower K- and L-Theory (electronic edition, 2001), by Andrew Ranicki (PDF in the UK) |
| QA612.6 .M53 1991 | Gauge Theory for Fiber Bundles (1991), by Peter W. Michor (PDF in Austria) |
| QA612.7 .U55 2013 | Homotopy Type Theory: Univalent Foundations of Mathematics (c2013), by Univalent Foundations Program, Institute for Advanced Study (PDF with commentary at homotopytypetheory.org) |
| QA613 .W35 1999 | Surgery on Compact Manifolds (second edition, ca. 1999), by C. T. C. Wall, ed. by Andrew Ranicki (PDF in the UK) |
| QA613.4 .H38 1996 | The Hauptvermutung Book: A Collection of Papers on the Topology of Manifolds (ca. 1996), ed. by Andrew Ranicki (PDF in the UK) |
| QA613.64 .B76 2009 | The Contraction Mapping Principle and Some Applications (EJDE monograph #9, 2009), by R. M. Brooks and Klaus Schmitt (PDF with commentary at ams.org) |
| QA613.658 .R35 2011 | Algebraic L-Theory and Topological Manifolds (electronic edition, 2011), by Andrew Ranicki (PDF in the UK) |
| QA613.658 .R36 | Exact Sequences in the Algebraic Theory of Surgery (1981), by Andrew Ranicki (PDF in the UK) |
| QA613.658 .R36 2010 | Algebraic and Geometric Surgery (electronic edition, 2010), by Andrew Ranicki (PDF in the UK) |
| QA613.8 .N48 2002 | New Directions in Hopf Algebras (2002), ed. by Susan Montgomery and Hans-Jürgen Schneider (PDF files with commentary at msri.org) |
| QA614 .K75 | The Convenient Setting of Global Analysis, by Andreas Kriegl and Peter W. Michor (PDF in Austria) |
| QA614.58 .M521 1985 | Elementary Catastrophe Theory (1985), by Peter W. Michor (PDF in Austria) |
| QA614.58 .M53 | Manifolds of Differentiable Mappings (c1980), by Peter W. Michor (PDF in Austria) |
| QA614.8 .G66 2004 | Singularities of Transition Processes in Dynamical Systems: Qualitative Theory of Critical Delays (EJDE monograph #5, 2004), by A. N. Gorban' (PDF with commentary at ams.org) |
| QA614.92 .G55 | Invariance Theory, the Heat Equation, and the Atiyah-Singer Index Theorem (1984), by Peter B. Gilkey (Postscript files at emis.de) |
| QA614.95 .G55 | Spinors, Spectral Geometry, and Riemannian Submersions, by Peter B. Gilkey, John V. Leahy, and Jeonghyeong Park (Postscript files at emis.de) |
| QA623 .B55 1890a | Notes on Roulettes and Glissettes, by W. H. Besant (page images at Cornell) |
| QA623 .P96 1878a | A Treatise on the Cycloid and All Forms of Cycloid Curves, by Richard A. Proctor (page images at Cornell) |
| QA639.5 .F58 1997 | Flavors of Geometry (1997), ed. by Silvio Levy (PDF files with commentary at msri.org) |
| QA641 .E36 T7 | A Treatise on the Differential Geometry of Curves and Surfaces (Boston et al.: Ginn and Co., c1909), by Luther Pfahler Eisenhart (page images at HathiTrust) |