Arfken & Weber 9.7.2 - Show that
satisfies the two appropriate criteria and therefore is a Green's function for the Helmholtz Equation.
The Helmholtz operator is given by
Symmetricity of Green's functions.
The Attempt at a Solution
Right off the bat I am not sure what is mean't by "the two appropriate criteria" phrase. What exactly are the two appropriate criteria that they ask for in Arfken & Weber problem 9.7.2? Where can I find this criteria so that I know how to answer this question?