From: The spectrum of non-local discrete Schrödinger operators with a *δ*-potential

\({\sqrt 2}\)-mode | \({\sqrt 2}\)-res. | 0-mode | 0-res. | |
---|---|---|---|---|

d=1
| No | No | No | No |

d=2
| No | No | No | Yes |

d=3
| No | Yes | Yes | No |

d=4
| No | Yes | Yes | No |

d≥5
| Yes | No | Yes | No |