A matrix-polynomial analysis shows that the subspace error of randomized small-block Lanczos is controlled by the b-th order relative gap times random factors, with the crucial random-factor bound conjectured and tested.
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A structural bound for cluster robustness of randomized small-block Lanczos
A matrix-polynomial analysis shows that the subspace error of randomized small-block Lanczos is controlled by the b-th order relative gap times random factors, with the crucial random-factor bound conjectured and tested.