Bezout in $\mathbb C [x,y]$
63605
Irreducible polynomials and affine variety
723
Is there a constructive way to exhibit a basis for $\mathbb{R}^\mathbb{N}$?
68409
Consider $f(x,y)=\sup_{θ,φ}\{||e^{i θ }x+ e^{i φ }y||^2: θ,φ∈R\}$ in which $x,y\in\mathbb C^n$
72468
Open and closed balls in $C[a,b]$
34693
Prove $E^{\mathbb Q}[Y]=E^{\mathbb P}[XY]$ if $E^{\mathbb P}[X]=\mathbb P(X>0)=1$ and $ \mathbb Q(A)=E^{\mathbb Q}[X1_A] $
145039
Algebraic independence over $\overline{\mathbb Q}$ and over $\mathbb Q$
84510
If $f(\mathbb{C})\subset \mathbb{C}-[0,1]$ then $f$ is constant
84189
Is $\mathbb{C}$ equal to $\mathbb{R}^2$?
156679
$K[X,Y]/(XY-1)$ not isomorphic to $K[T]$
143354
Prove that there exists $c\in\mathbb{R}$ such that $f'(c)=f(c)$
2043
$X^n-Y^m$ is irreducible in $\Bbb{C}[X,Y]$ iff $\gcd(n,m)=1$
110944
Proving that $AB-BA=cI$ for nontrivial $c \in \mathbb{C}$
42883
Cross product in $\mathbb R^n$
108740
$C^1[a,b]$ is closed in $C[a,b]$
108123
Why is $\mathbb{C}[x,y]/(y^2 - x^3 + 1)$ normal?
143000
Show that there exists a $c\in \mathbb{C}$ such that $f(z)=c \bar{z}$ for all $\vert z\vert=1$.
20467
Show that $(y_n)\in l^q$