Chú thích Đặc_trưng_Euler

  1. ↑ Imre Lakatos: Proofs and Refutations, Cambridge Technology Press, 1976
  2. ↑ Richeson, D., Euler's Gem, Princeton, 2008 (p. 261)
  3. ↑ Edwin Spanier: Algebraic Topology, Springer 1966, p. 205.
  4. ↑ William Fulton: Introduction to toric varieties, 1993, Princeton University Press, p. 141.
  5. ↑ Spanier, Edwin Henry (1982), Algebraic Topology, Springer, ISBN 978-0-387-94426-5 , Applications of the homology spectral sequence, p. 481
  6. ↑ Gottlieb, Daniel Henry (1975), “Fibre bundles and the Euler characteristic” (PDF), Journal of Differential Geometry 10 (1): 39–48 
  7. ↑ Olaf Post calls this a "well-known formula": Post, Olaf (2009), “Spectral analysis of metric graphs and related spaces”, Limits of graphs in group theory and computer science, Lausanne, Switzerland: EPFL Press, tr. 109–140, arXiv:0712.1507 .
  8. ↑ Tom Leinster, "The Euler characteristic of a category", Documenta Mathematica, 13 (2008), pp. 21–49

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