New posts in Homotopy Theory

Milnor's proof that a smooth manifold has the homotopy type of a CW complex

Is it true that $K(G \ast H, 1) = K(G,1)\vee K(H,1) $?

Fundemental group of $S^2$ with equator is identified $z \sim z^3$

Is there a quick way to distinguish between a wedge of spheres and a suspended projective space?

Whitehead product $[i_2, i_2]_W$

Why is it that homotopy is better described by weak equivalences than by homotopies?

Motivation for local cohomology and local homotopy theories in Algebraic topology.

Why isn't this homotopy pullback a point?

On the homotopy type of $\mathbb R P^3$ and $\mathbb R P^2 \vee S^3$

Is the Fundamental Groupoid a Bicategory?