Algebraic topology 1 | Geometry and topology | Cambridge University Press
Algebraic Topology by Allen Hatcher #shorts - YouTube
homotopy theory - $\pi_n((S^1 \vee S^n)\cup e^{n+1})$, Example 4.35, Hatcher, Algebraic Topology - Mathematics Stack Exchange
∇ₖPascal ∇ₚKwanten (∛) (Πασκάλ) on Twitter: "@74WTungsteno See also the reference Allen Hatcher's "Algebraic Topology" in one my earlier tweets: https://t.co/3oSfTcj5KP And the (Dover Publications) book (but more focus on geometry): https://t.co ...