Why the left invariant means $L_y\circ x_t = x_t \circ L_y$?
98800
Do local flows of left-invariant vector fields satisfy $\Phi_X^t\circ L_x=L_x\circ \Phi_X^t$?
36090
$TT^*=T^2$, show that $T$ is self-adjoint
61530
Definitions and usage of Covariant, Form-invariant & Invariant?
71231
Determinant of circulant-like matrix
16109
Prove that $ \int _a^b\:f\left(x\right)\:\:dx\:=\:\int _a^b\:f\left(a+b-x\right)\:\:dx $
101786
Proving the Lorentz invariance of the Lorentz invariant phase space element
94077
Proof of linear independence of $e^{at}$
87926
Pumping Lemma for $L=\left\{0^i 1^{j} \mid \gcd(i,j) = 1\right\}$
25009
$\operatorname{tr}(A)=\operatorname{tr}(A^{2})= \ldots = \operatorname{tr}(A^{n})=0$ implies $A$ is nilpotent
48111
Invariant Subspace of Two Linear Involutions
130765
Linear dependence of $\left\{x^{n}\,\colon\, n\in\mathbb{N}\right\}$
117175
Proof that the 2-norm of orthogonal transformation of a matrix is invariant
54266
Prove that $\int_a^b \left( \int_c^d f(x,y)dy\right) dx=\int_c^d \left( \int_a^b f(x,y)dx\right) dy$
20659
Is trace invariant under cyclic permutation with rectangular matrices?
71437
How is the derivative of $\textrm{Trace}\left\{ X^T A X B\right\}$ with respect to $X$ equal to $AXB + A^TXB^T$?
24072
Intuitive explanation of why $\dim\operatorname{Im} T + \dim\operatorname{Ker} T = \dim V$
114524
Proof Verification: the orthogonal complement of the column space is the left nullspace