Functions on $\mathbb{R}^n$ commuting with orthogonal transformations
100810
Let $V$ be spherically symmetric and $W$ i.i.d. Gaussian. Then $E[V|V+W=t]=g(\|t\|)$
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Why do operators belonging to different Hilbert spaces commute?
105170
About product of $k$ commutators
66092
Simultaneous diagonalization of commuting linear transformations
41846
$(\mathbb{R}^n,\|\cdot\|_{p})$ is isometrically isomorphic to $(\mathbb{R}^n,\|\cdot\|_{q})$ iff $p=q,$
44148
Functions that are their own inverse.
258
Existence of orthogonal coordinates on a Riemannian manifold
56211
An operator that commutes with another operator $T$ with distinct characteristic values is a polynomial in $T$
97994
Orthogonality Relations Exercise, Brezis' Book Functional Analysis
44685
Inner product on $C(\mathbb R)$
145462
On the canonical isomorphism between $V$ and $V^{**}$
75059
Let $T:\mathbb{R}^n\to \mathbb{R}^n$ be a linear transformation...
119352
compact and self adjoint square root of an operator
2874
Commuting in Matrix Exponential
91222
Isomorphism between $\mathfrak o(4,\mathbb R)$ and $\mathfrak o (3,\mathbb R) \oplus\mathfrak o (3,\mathbb R) $
82474
Isometries of $\mathbb{R}^n$
18379
Linear transformation $T:\mathbb{R}^{n}\rightarrow\mathbb{R}^{n}$ such that $T^{2}=\lambda T.$