New posts in Projective Space

If $f\colon S^n \longrightarrow S^m$ continuous, $m\geq n$.

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

Formula for ellipse formed from projecting a tilted circle onto the xy plane

Geometric notion of addition for the real projective line

Prove that the real projective line cannot be embedded into Euclidean space

Holomorphic 1-forms on a smooth affine plane curve

Why is the line at infinity one-dimensional?

Are complex projective spaces orientable?

Intuitive or visual understanding of the real projective plane

Real Projective Space Homeomorphism to Quotient of Sphere (Proof)