Michael L. Overton, Robert S. Womersley. Second Derivatives for Optimizing Eigenvalues of Symmetric Matrices. SIAM J. Matrix Analysis Applications, 16(3):697-718, 1995. [doi]
@article{OvertonW95,
title = {Second Derivatives for Optimizing Eigenvalues of Symmetric Matrices},
author = {Michael L. Overton and Robert S. Womersley},
year = {1995},
doi = {10.1137/S089547989324598X},
url = {http://dx.doi.org/10.1137/S089547989324598X},
researchr = {https://researchr.org/publication/OvertonW95},
cites = {0},
citedby = {0},
journal = {SIAM J. Matrix Analysis Applications},
volume = {16},
number = {3},
pages = {697-718},
}