ISSN - 03759601, Physics Letters, Section A: General, Atomic and Solid State Physics, 1982, vol. 92, 8, p. 381-384
Electron green function and vacuum polarization in a Coulomb field
An explicit expression for the renormalized charge density induced in the presence of a Coulomb field is derived both in momentum and coordinate space, by taking advantage of an integral representation for the electron Green function obtained earlier by the authors. © 1982.