Nicholas J. Higham, Lijing Lin. A Schur-Padé Algorithm for Fractional Powers of a Matrix. SIAM J. Matrix Analysis Applications, 32(3):1056-1078, 2011. [doi]
@article{HighamL11,
title = {A Schur-Padé Algorithm for Fractional Powers of a Matrix},
author = {Nicholas J. Higham and Lijing Lin},
year = {2011},
doi = {10.1137/10081232X},
url = {http://dx.doi.org/10.1137/10081232X},
researchr = {https://researchr.org/publication/HighamL11},
cites = {0},
citedby = {0},
journal = {SIAM J. Matrix Analysis Applications},
volume = {32},
number = {3},
pages = {1056-1078},
}