@article{oai:nagoya.repo.nii.ac.jp:00023411,
 author = {Richard, Serge and de, Aldecoa  R. Tiedra},
 issue = {2},
 journal = {Journal of Mathematical Analysis and Applications},
 month = {Feb},
 note = {For the scattering system given by the Laplacian in a half-space with a periodic boundary condition, we derive resolvent expansions at embedded thresholds, we prove the continuity of the scattering matrix, and we establish new formulas for the wave operators.},
 pages = {1695--1722},
 title = {Spectral and scattering properties at thresholds for the Laplacian in a half-space with a periodic boundary condition},
 volume = {446},
 year = {2017}
}