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Results tagged with block-matrices
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user 229535
4
votes
2
answers
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views
Eigenvalues in unit disk for a 2×2 block matrix
Crossposted from Mathematics.
Consider the $2\times 2$ matrix
\begin{align*}
Q =
\begin{bmatrix}
1 & 1 \\
0 & a
\end{bmatrix}
-
\epsilon
\begin{bmatrix}
1 & 0 \\
1 & 0
…
- 43