On the denseness of the set of scattering amplitudes

A. G. Ramm

It is proved that the set of scattering amplitudes $\{A(\beta ,\alpha ,k){\}}_{\forall \alpha \in S^2}$, known for all $\beta \in S^2$, where $S^2$ is the unit sphere in ${\mathbb{R}}^3$, $k>0$ is fixed,…