... D. 3.27Therefore, the well-known jump relationships see 13, 14 imply that−→ψ a, b, c, dT0, 0, 0, 0T. 3.28So we complete the proof of the theorem. Combining Theorems ... instead of it by the assumption that Im k>0, then Theorem 2.1 in Section 2and Theorem 3.3 in Section 3 are also true.Boundary Value Problems 7Then zero extend b, c,andd to the whole ∂Ω in the ... y2.12is the fundamental solution to the Helmholtz equation in R2,andH10is a Hankel function of the first kind of order zero.By making use of the known jump relationships of the single-...