Abstract
In this paper, we establish the asymptotic expansions for the integration containing the Bessel functions with high oscillations by using the homotopy technique. The proposed method is constructed by approximating the non-oscillatory or low-oscillatory factor in practice. Two cases are considered, that is, the case 0 [a, b] and the case 0∈[a, b], where [a, b] denotes the integration interval. The efficiency of the technique and the correctness of the theory are shown by several examples.
Acknowledgements
The authors thank the associated editor and referees for their valuable comments and suggestions for great improvement of this paper. The first author acknowledges the financial supports from Postdoctoral Foundation of Central South University and Start-up Projects of Guangdong Ocean University.