Ivan G. Graham, Stefan A. Sauter. Stability and finite element error analysis for the Helmholtz equation with variable coefficients. Math. Comput., 89(321):105-138, 2020. [doi]
@article{GrahamS20,
title = {Stability and finite element error analysis for the Helmholtz equation with variable coefficients},
author = {Ivan G. Graham and Stefan A. Sauter},
year = {2020},
doi = {10.1090/mcom/3457},
url = {https://doi.org/10.1090/mcom/3457},
researchr = {https://researchr.org/publication/GrahamS20},
cites = {0},
citedby = {0},
journal = {Math. Comput.},
volume = {89},
number = {321},
pages = {105-138},
}