f1 f1 f1 B ω2MHP/ ω0 ω2MLP /ω0 ωexact/ ω0
0.01
0.02
0.10
0.05
0.07
0.15
0.12
0.14
0.13
0.03
0.05
0.01
0.02
0.01
0.02
0.10
0.05
0.08
0.20
0.15
0.30
0.40
-0.05
-0.01
0.10 -
-0.08
0.01
0.02
0.06
0.03
0.05
0.10
0.04
0.12
0.16
0.02
0.04
0.01
0.03
0.73513
0.76452
0.966336
0.823497
0.885144
1.07527
0.894785
0.949597
0.92592
0.825353
0.935453
0.761675
0.89998
1.01302
1.02191
1.03587
1.0494
1.06025
1.08029
1.17802
1.31772
1.43909
0.869297
0.844398
0.808686
0.68875
1.01302
1.02192
1.03603
1.04941
1.0603
1.0811
1.178
1.31768
1.43654
0.869339
0.844862
0.808704
0.702734
1.01302
1.02191
1.03584
1.0494
1.06025
1.08014
1.17802
1.31774
1.43667
0.869302
0.844401
0.808711
0.69135
Table 4: Comparison of the calculated values of ω20in this paper for hexapole, octopole and decapole superpositions with the values obtained by modified Lindstedt- Poincare approximation [11] and the exact values.
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