Corrigendum to: “Acceleration of a two-grid method for eigenvalue problems”
Xiaozhe Hu, Xiaoliang Cheng · Mathematics of Computation · 2015
There is a gap in the proof of Theorem 3.3 in our paper named above. A careful estimate of the constant C h ( μ ) C_{h}(\mu ) in Lemma 3.1 is needed for the error estimates of the two-grid method to hold. In this erratum, we provide a corrected version of the proof.