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New posts in projective-space
Show that the dimention of the intersection of projective linear sub-spaces of dimentions $d_1$ and $d_2$ of $\mathbb{P}^n$ is bigger than $d_1+d_2-n$
algebraic-geometry
vector-spaces
projective-space
krull-dimension
projective-schemes
Real Projective Plane is Same as Identifying Antipodal Boundary Points of The $2$-Disc.
general-topology
projective-space
quotient-spaces
Why is the fundamental group of the projective plane $C_{2}$?
algebraic-topology
intuition
fundamental-groups
projective-space
Number of points on a line in a finite projective plane
geometry
algebraic-geometry
projective-geometry
projective-space
Orientability of $\mathbb{RP}^3$
geometry
intuition
projective-space
Nonsingular projective curve model corresponding to $y^2 = x^4+1$
algebraic-geometry
curves
projective-space
Definition of $ \ \mathcal{O}_{\mathbb{P}_k^n}(1)$ [duplicate]
algebraic-geometry
schemes
projective-space
projective-schemes
Are all isomorphisms between the Fano plane and its dual of order two?
group-theory
graph-theory
projective-space
duality-theorems
exceptional-isomorphisms
How to define a Riemannian metric in the projective space such that the quotient projection is a local isometry?
riemannian-geometry
projective-geometry
projective-space
isometry
Showing that an involution of the projective line with a fixed point fixes exactly two points
projective-geometry
projective-space
fixed-points
involutions
Stiefel-Whitney numbers for product bundle
algebraic-topology
differential-topology
projective-space
characteristic-classes
Constant morphism between projective varieties
algebraic-geometry
projective-space
Why is the line at infinity one-dimensional?
algebraic-geometry
proof-verification
projective-geometry
projective-space
Give an explicit embedding from $\mathbb{R}P_2$ to $\mathbb{R}^4$
general-topology
algebraic-topology
projective-space
Tangent bundle of a quotient by a proper action
differential-geometry
vector-bundles
projective-space
Unique line in $\mathbb{P}^3$ through a point $p$ and intersecting two disjoint lines
algebraic-geometry
projective-space
Homotopy groups of $\mathbb{RP}^\infty$, $\mathbb{CP}^\infty$.
reference-request
algebraic-topology
projective-space
Hilbert polynomial of an hypersurface in projective space
algebraic-geometry
projective-space
Prove that Hopf maps on $S^3, S^2$ and $\mathbb{C} \mathbb{P}^1$ are smooth submersions
differential-geometry
manifolds
smooth-manifolds
projective-space
What is correct representation of homogenous coordinates?
geometry
coordinate-systems
projective-geometry
projective-space
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