@book{davis2006direct,
  title={Direct methods for sparse linear systems},
  author={Davis, Timothy A},
  year={2006},
  publisher={SIAM}
}
@article{davis2005row,
  title={Row modifications of a sparse Cholesky factorization},
  author={Davis, Timothy A and Hager, William W},
  journal={SIAM Journal on Matrix Analysis and Applications},
  volume={26},
  number={3},
  pages={621--639},
  year={2005},
  publisher={SIAM}
}
@article{davis1999modifying,
  title={Modifying a sparse Cholesky factorization},
  author={Davis, Timothy A and Hager, William W},
  journal={SIAM Journal on Matrix Analysis and Applications},
  volume={20},
  number={3},
  pages={606--627},
  year={1999},
  publisher={SIAM}
}

