List questions from projective-space | MathQA

How to present a projective variety in higher dimension space defined by the same equation?

Published on 26 Mar 2026 - 21:08

Chern class of a hypersurface in $\mathbb{C}P^3$

Published on 26 Mar 2026 - 19:00

Can we glue CW complexes to themselves?

Published on 29 Mar 2026 - 14:01

Extend a homomorphism $\mathrm{PSL}(2,3) \to \mathrm{PGL}(n, \mathbb{C})$ to a homomorphism $\mathrm{SL}(2,3) \to \mathrm{GL}(n, \mathbb{C})$

Published on 08 Jan 2023 - 6:50

For 3 straights $l_1,l_2,l_3$ in a 2-dimensional projective space $P(V)$ so that they don’t intersect. How can I prove the following statement:

Published on 13 Jan 2023 - 22:03

Functor of points of projective varieties (e.g., elliptic curve) over any commutative ring

Published on 27 Mar 2026 - 0:59

Projectivity of exterior powers/algebras?

Published on 31 Mar 2026 - 18:37

Diffeomorphism between $SO(3)$ and $\mathbb{R}P^3$

Published on 29 Mar 2026 - 11:51

Is a morphism from a quasi-affine variety to a quasi-projective variety given by globally defined regular maps?

Published on 23 Feb 2026 - 17:47

The projective plane as a smooth surface in a 4-dimensional space

Published on 26 Mar 2026 - 16:57