char$(K)=0$ then $K(x^{2}) \cap K(x^{2}-x)=K$
82576
Intersection of two subfields of the Rational Function Field in characteristic $0$
81818
Prove or disprove : $\det(A^k + B^k) \geq 0$
105141
$\mathbb R[x]/\langle x^2+1\rangle\simeq\mathbb C$ and $\mathbb R[x]/\langle x^2+1\rangle$ contains a zero of $x^2+1$
134439
Proving function is $C^k$
55858
Irreducible polynomial is always separable in char 0 field
15626
Relations of a~b iff b = ak^2
106927
How do I prove $[G:H\cap K]\leq [G:H][G:K]$?
15312
Show that $R \cap R^{−1}$ is an equivalence relation on $X$?
35631
$H_0(X,A) = 0 \iff A \cap X_i \neq \emptyset \forall $ path-components $X_i$
51706
If $(k,l) = 1$, show that $(b_2k-b_1l, a_1l-a_2k) = 1$ for $a_1b_2-a_2b_1=1$
114254
Zero divisors in $A[x_1,x_2,\dots,x_r]$
114519
An elementary question regarding a multiplicative character over finite fields
61761
Equivalent definition $\text{Cone}(K)$
11715
Prove that if $\langle Tx,x\rangle =0$ for all $x \in X$, then $T = 0$
63104
Dual cone of $K = \{(x,t) \mid \| \boldsymbol{x} \|_1 \le t \}$
94469
How to prove that $|HK| = \dfrac{|H| \; |K|}{|H \cap K|}$?
73174
Prove $KN\cong K\times N$ if $K\cap N=\{e\}$