On the non Hausdorff-ness of projective variety
70049
Irreducible topological spaces and irreducible Hausdorff space
80202
Why is $[0, 1] \cap \mathbb{Q}$ not compact in $\mathbb{Q}$?
102484
Connectedness problem and countability of compact subsets of the Sorgenfrey line
154324
preservation of completeness under homeomorphism
27096
Hilbert polynomial of an hypersurface in projective space
74330
$\mathbb{R}^n$ not homeomorphic to open subset of $\mathbb{R}^m$
102250
Subset of $C[0,1]$ is nowhere dense
85175
Continuous Images of $GL_n(\mathbb{R})$
115088
Surjective morphism of affine varieties and dimension
33576
Non-principal ideal in $K[x,y]$?
30898
Orientability of projective space
666
Prove that the upper half plane of Cartesian plane is not an affine variety
120877
$A$ abelian variety. Is the multiplication by $n_A$ surjective?
151637
How do we prove that this set is not manifold?
37841
Product of quotient maps and quotient space that is not Hausdorff
57653
Relation between line bundles over $\mathbb{P}^1$ in geometry and topology
27735
Morphism to Projective Space $\mathbb{P}^m$