ABSTRACT
The resolvent construction used in the previous sections for the 1D case is developed here for the 3D one. The resolvent must satisfy Eq. (3.7) () 〈 p | R ^ | p ′ 〉 = 〈 p | K ^ | p ′ 〉 + ∫ d p 1 〈 p | K ^ | p 1 〉 〈 p 1 | R ^ | p ′ 〉 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429027734/3459738c-2c4a-4735-9dff-a328e021e9d4/content/eq799.tif"/>
