$\langle x,y \rangle + \langle y,x \rangle = 2\operatorname{Re}\langle x,y \rangle$
112060
Is complex conjugation needed for valid inner product?
73367
On $E[E[Y|X]|X]= E[Y|X]$
34147
$\|u\|\leq \|u+av\| \Longrightarrow \langle u,v\rangle=0$
122603
How does $\mathcal E(\rho)=\mathrm{Tr}_{env}[U(\rho\otimes\rho_{env})U^\dagger]$ turn into $P_0\rho P_0+P_1\rho P_1$?
103870
$3.\lim_{n\to\infty}\langle x,e_n\rangle=?$
74611
$\operatorname{Adj} (\mathbf I_n x-\mathbf A)$ when $\operatorname{rank}(\mathbf A)\le n-2$
54267
Field of fractions of $\mathbb{Q}[x,y]/\langle x^2+y^2-1\rangle$
121802
Prove that every self-adjoint unitary linear operator can be expressed in the form $U\alpha = \beta - \gamma$
1990
Results for elements in Dihedral Groups: $x \notin \langle r\rangle  \Rightarrow rx = xr^{-1}$
105363
$\mathbb Z^n/\langle (a,...,a) \rangle \cong \mathbb Z^{n-1} \oplus \mathbb Z/\langle a \rangle$
98352
If $k|n$, then $D_{2n}/\langle{r^k}\rangle\cong D_{2k}$
29174
Trouble with operator-sum representation of a quantum operation
151721
Uhlmann's Theorem: proof of $\text{tr}(A^{\dagger} B) = \langle m | A \otimes B |m\rangle $
45028
How to show that $\langle a \rangle$ is a subgroup of a group $G$, where $a$ is in center of the group $G$
150199
How to prove for a finite group that $|\langle g \rangle|=o(g)$?
7813
In a complex vector space, $\langle Tx,x \rangle=0 \implies T = 0$
79647
Where does the term $|\psi\rangle\langle\psi|$ come from while calculating the expectation value?