Exterior potential

Finding Mass Distribution From the Exterior Potential
Alexander G. Ramm
Annals of Communications in Mathematics 2025,
8 (2),
184-187
DOI: https://doi.org/10.62072/acm.2025.080203
AbstractIn this article, we revisit a well-known result from the literature that can be considered a variant of the Hardy integral inequality. First, we present a counterexample to demonstrate the invalidity of the current formulation. We then revise the result by identifying and addressing a gap in the original proof. Finally, as an additional contribution, we derive a new integral inequality.