Existence of certain hyper surface with no lines in $\mathbb{P}^3_k$ for an infinite field
112727
Surfaces in $\mathbb P^3$ not containing any line
140612
Two homologous but not homotopic loops on a closed surface of genus greater than one
34740
Do finite algebraically closed fields exist?
84386
Domain strictly contained in the intersection of localizations at the primes of height one
6323
existence of complex structure in dimension 2
30587
Uncountable well ordered set in $Z^-$ theory.
139176
The real line is not homeomorphic to any non-trivial product space
130872
Map $f: S^n \to S^n$ that extends over $D^{n+1}$ must identify a pair of antipodal points
87101
Irreducible but not prime in $K[X,Y]/(X^2-Y^3)$
48127
Are there infinitely many $A\in \mathbb{C}^{2 \times 2}$ satisfying $A^3 = A$?
88206
Image of a line in $\mathbb{P}^2$ under Veronese embedding
26329
Is there a shape with infinite area but finite perimeter?
112114
Detailed proof that no essential singularity at infinity implies polynomial
129997
Unique line in $\mathbb{P}^3$ through a point $p$ and intersecting two disjoint lines
146591
Inseparable polynomial over a non-perfect field
31736
Removable singularities and an entire function
730
Fundamental Group of surface with infinite genus is free on infinite generators