@article{barucq:hal-01408934, TITLE = {{Stability analysis of heterogeneous Helmholtz problems and finite element solution based on propagation media approximation}}, AUTHOR = {Barucq, H{\'e}l{\`e}ne and Chaumont-Frelet, Th{\'e}ophile and Gout, Christian}, URL = {https://inria.hal.science/hal-01408934}, JOURNAL = {{Mathematics of Computation}}, PUBLISHER = {{American Mathematical Society}}, VOLUME = {86}, NUMBER = {307}, PAGES = {2129 - 2157}, YEAR = {2017}, DOI = {10.1090/mcom/3165}, PDF = {https://inria.hal.science/hal-01408934/file/preprint_mcom.pdf}, HAL_ID = {hal-01408934}, HAL_VERSION = {v1}, }