Proof $E[Z'TZ]^2=\operatorname{tr}^2(T)+\operatorname{tr}(T^2)$
62621
Expected value and variance of trace function
138342
Proof of a matrix exponential identity
127620
Matrix exponential of a traceless $2\times2$ complex matrix
22149
How to prove $dim(Ker (A- \lambda I))=dim (Ker(A^t- \lambda I))$?
101499
Prove $e^{x+y}=e^{x}e^{y}$ by using Exponential Series
129732
What is $\operatorname{Aut}(\mathbb{Z}_2\oplus \mathbb{Z}_2)$?
71708
Proving that $\left( \frac{\partial^2}{\partial x^2} + \frac{\partial^2}{\partial y^2} \right) \lvert f(z) \rvert^2 = 4 \lvert f'(z) \rvert^2$
49061
Show that $\int_{\partial P}z\frac {f'(z)} {f(z)} dz $ is on the lattice $\Lambda$
38785
Prove previsibility and $E[X_{T \wedge n}] \le E[X_{S \wedge n}]$
65395
Prove that if $\operatorname{rank}(T) = \operatorname{rank}(T^2)$ then $R(T) \cap N(T) = \{0\}$
47829
Prove that $\operatorname{trace}(A^TA) = 0\ \iff\ A = 0$.
95415
proof relating to limit definition of e
100711
$\int_{-\infty}^{\infty}e^{-zt^2 + 2wt} \ dt = e^{w^2 / z} \sqrt{\frac{\pi}{z}}$ for $z,w \in \mathbb{C}, Re(z) > 0$
12949
Inductive Proof of Euler's Formula $v-e+r=2$
79024
the derivation of E(X|X)
62192
Proof $L{\rm{[}}\frac{{x(t)}}{t}{\rm{] = }}\int_s^\infty {X(u)du} $
72735
Understanding the proof of a formula for $p^e\Vert n!$