| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| differential operators with non dense domain | 1.38 | 0.4 | 8947 | 68 | 44 |
| differential | 1.95 | 0.2 | 8158 | 19 | 12 |
| operators | 1.84 | 0.5 | 7359 | 45 | 9 |
| with | 1.4 | 0.6 | 5029 | 22 | 4 |
| non | 1.81 | 0.5 | 8856 | 39 | 3 |
| dense | 1.93 | 0.7 | 5515 | 56 | 5 |
| domain | 0.37 | 0.4 | 6523 | 71 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| differential operators with non-dense domain | 0.37 | 0.6 | 1845 | 30 |
| a and the differential operator | 1.18 | 0.1 | 6315 | 30 |
| algebra of differential operators | 1.93 | 0.8 | 873 | 24 |
| linear partial differential operators | 0.21 | 0.5 | 9325 | 38 |
