Keyword | CPC | PCC | Volume | Score | Length of keyword |
---|---|---|---|---|---|
perturbation theory for linear operators | 0.05 | 0.3 | 1876 | 80 | 40 |
perturbation | 1.89 | 0.8 | 3795 | 64 | 12 |
theory | 1.03 | 0.2 | 4228 | 95 | 6 |
for | 1.36 | 0.3 | 3344 | 50 | 3 |
linear | 0.78 | 0.2 | 9040 | 61 | 6 |
operators | 1.44 | 0.1 | 8486 | 65 | 9 |