This paper is an appendix to the book "Complex space source theory of spatially localized electromagnetic waves". It provides a background on three-dimensional scalar Green's function, Fourier transform of scalar Green's function, and Bessel transform of scalar Green's function.

Chapter Contents:

• A.1 Three-dimensional scalar Green's function
• A.2 Fourier transform of scalar Green's function
• A.3 Bessel transform of scalar Green's function
• References

Inspec keywords: Helmholtz equations; computational electromagnetics; Fourier transforms; Green's function methods

Other keywords: Bessel transform; complex space source theory; Fourier transform; Helmholtz equation; spatially localized electromagnetic waves; Green's function

Subjects: Integral transforms; Electric and magnetic fields; Classical electromagnetism; Function theory, analysis; Electromagnetic waves, antennas and propagation; Mathematical analysis