Is there a formula to easily compute the power of the following matrix multiplication: $(\mathbf{I}^*\mathbf{A})^n$, where $\mathbf{I}^*=\text{diag}(1,1,\ldots,1,-1,-1)$ is an involutory and special orthogonal matrix?
2026-03-26 12:37:11.1774528631
Power of involutory and special orthogonal matrix
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