Betti number (English Wikipedia)
Analysis of information sources in references of the Wikipedia article "Betti number" in English language version.
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books.google.com
- Per Hage (1996). Island Networks: Communication, Kinship, and Classification Structures in Oceania. Cambridge University Press. p. 49. ISBN 978-0-521-55232-5.
- Peter Robert Kotiuga (2010). A Celebration of the Mathematical Legacy of Raoul Bott. American Mathematical Soc. p. 20. ISBN 978-0-8218-8381-5.
doi.org
- Witten, Edward (1982), "Supersymmetry and Morse theory", Journal of Differential Geometry, 17 (4): 661–692, doi:10.4310/jdg/1214437492
ghostarchive.org
- Archived at Ghostarchive and the Wayback Machine: Albin, Pierre (2019). "History of algebraic topology". YouTube.
- Archived at Ghostarchive and the Wayback Machine: Wildberger, Norman J. (2012). "Delta complexes, Betti numbers and torsion". YouTube.
web.archive.org
- Archived at Ghostarchive and the Wayback Machine: Albin, Pierre (2019). "History of algebraic topology". YouTube.
- Archived at Ghostarchive and the Wayback Machine: Wildberger, Norman J. (2012). "Delta complexes, Betti numbers and torsion". YouTube.
wolfram.com
mathworld.wolfram.com
- Barile, and Weisstein, Margherita and Eric. "Betti number". From MathWorld--A Wolfram Web Resource.
youtube.com
- Archived at Ghostarchive and the Wayback Machine: Albin, Pierre (2019). "History of algebraic topology". YouTube.
- Archived at Ghostarchive and the Wayback Machine: Wildberger, Norman J. (2012). "Delta complexes, Betti numbers and torsion". YouTube.