@inproceedings{anne2020first-order,
title={First-order Perturbation Theory for Eigenvalues and Eigenvectors},
author={Anne Greenbaum, Ren-Cang Li, and Michael Overton},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20210507101945090788806},
booktitle={SIAM Review},
volume={62},
number={2},
pages={463-482},
year={2020},
}
Anne Greenbaum, Ren-Cang Li, and Michael Overton. First-order Perturbation Theory for Eigenvalues and Eigenvectors. 2020. Vol. 62. In SIAM Review. pp.463-482. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20210507101945090788806.