## On the scattering theory of the Laplacian with a periodic boundary condition. II. Additional channels of scattering

### Summary

Summary: We study spectral and scattering properties of the Laplacian $H^{(\sigma)} = -\Delta$ in $L_2(\R^2_+)$ corresponding to the boundary condition $\frac{$

### Mathematics Subject Classification

35J10, 35J25, 35P05, 35P25

### Keywords/Phrases

scattering theory, periodic operator, Schrödinger operator, singular potential