Scaling-limit conjecture for model 1 and model 2 spectra
Let be the matrix size and let be the model parameter, with fixed parameters and . Spectral scaling conjecture. For both model 1 and model 2, when and are sufficiently large, the sizes of the spectra and pseudospectra are determined by the ratio . Consequently, numerical eigenvalue patterns for different pairs with the same ratio have components of similar sizes when both parameters are sufficiently large. Equivalently, there are nontrivial scaling limits with , , and fixed . This conjectures a ratio-controlled asymptotic regime for both spectral and pseudospectral patterns; the supplied text provides no resolution.
References
Primary source
Saori Morimoto, Makoto Katori and Tomoyuki Shirai, “Eigenvalue and pseudospectrum processes generated by nonnormal Toeplitz matrices with rank 1 perturbations”, arXiv:2401.08129 (2025).
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