Adrianna Gillman, Per-Gunnar Martinsson. A Direct Solver with O(N) Complexity for Variable Coefficient Elliptic PDEs Discretized via a High-Order Composite Spectral Collocation Method. SIAM J. Scientific Computing, 36(4), 2014. [doi]
@article{GillmanM14-1,
title = {A Direct Solver with O(N) Complexity for Variable Coefficient Elliptic PDEs Discretized via a High-Order Composite Spectral Collocation Method},
author = {Adrianna Gillman and Per-Gunnar Martinsson},
year = {2014},
doi = {10.1137/130918988},
url = {http://dx.doi.org/10.1137/130918988},
researchr = {https://researchr.org/publication/GillmanM14-1},
cites = {0},
citedby = {0},
journal = {SIAM J. Scientific Computing},
volume = {36},
number = {4},
}