New posts in Algebraic Topology

Real, Complex, Quaternionic and Octonionic Projective spaces

Looking for introductory text on algebraic topology, not satisfied with Hatcher.

Fundamental group of mapping cone of quotient map from suspension to reduced suspension

Given a space $X$, construct a CW complex $L(X)$ s.t. they have the same fundamental group

The fundamental group(s) of $\Bbb Q$ and of $\Bbb R$.

Hatcher Exercise 2.1.26.

Do the closed unit disk $D$ and $f(D)$ intersect, if $||f(x)-x||\le2$ for all $x\in D$?

Why do we need the local triviality condition when working with vector bundles?

If the fiber and the base are Kähler manifolds is the total space also Kähler?

How to prove that automorphisms of $\mathbb P^n$ arise from linear maps in $\mathbb A^{n+1}$?