Gravitational waves: a foundational review
arXiv:1305.0777
Abstract
The standard linear approach to the gravitational waves theory is critically reviewed. Contrary to the prevalent understanding, it is pointed out that this theory contains many conceptual and technical obscure issues that require further analysis.
This manuscript is a (revised and updated) compilation of the results published in arXiv:0709.1603 and arXiv:0809.2911, and is intended as an arXiv paper. V3: presentation changes aiming at clarifying the discussion