Spectra of tetradiagonal real Toeplitz matrices
This page is a part of a joint work
We consider non-symmetric real Toeplitz matrices a(t) = a−1t−1+a0t0+a2t2. Choose the coefficients:
The image of the symbol is shown by a black curve. The Schmidt and Spitzer set consists of three red segments.
The eigenvalues correspond to the Toeplitz matrix Tn(a). |
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