New posts in Algebraic Topology

Example of cw complexes quasi isomorphic but not homotopic.

How would you characterise the inverse image of this polynomial equation?

What is the surface obtained by identifying antipodal points of $\mathbb{S}^1 \times \mathbb{S}^1$?

Hatcher's Algebraic Topology. Exercise 2.2.42

Quotient of $ S^3 \times S^3$ by a free torus action.

Properties of Orientation Covering: Lee's Construction

Is $\Bbb R^2\times\Bbb S^2$ simply connected?

Group cohomology of $PSU(n)$

$S^2$ is not a countable union of embedded circles $S^1$

Oriented knots, equivalence relation