List questions from orthogonal-matrices | MathQa

Orthogonality of stochastic matrix

Published on 18 Apr 2025 - 14:46

How to show that the isotropic tensor of order $n$ is a multiple of the Kronecker delta?

Published on 14 Apr 2025 - 11:24

The set of traces of orthogonal matrices is compact

Published on 15 Apr 2025 - 8:11

If $\lambda$ is an eigenvalue of an orthogonal matrix $C$, prove $\frac{1}{\lambda}$ is an eigenvalue of $C^T$

Published on 15 Apr 2025 - 15:22

Find a real orthogonal matrix of order $3$ , other than +- I_3 ,having all integer elements.

Published on 15 Apr 2025 - 10:06

Parametrization of $3 \times 3$ real orthogonal matrices

Published on 15 Apr 2025 - 12:15

Show that $O(n)$, the set of orthogonal $n \times n$ matrices, is not connected

Published on 15 Apr 2025 - 7:24

Given matrices $A,B$, minimize $\|UAV^T - B\|_F$ over orthogonal matrices $U, V$

Published on 15 Apr 2025 - 6:16

Is an orthogonal matrix necessarily a permutation matrix?

Published on 15 Apr 2025 - 12:21

Orthogonal matrix $Q$ such that $\forall x\leq 0$, $Qx\geq 0$

Published on 15 Apr 2025 - 12:06