Integrating products of Bessel functions

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SUMMARY

The discussion focuses on finding an analytical solution for the integral involving products of Bessel functions of the first kind, specifically the integral \int_{0}^{2\pi}J_{m}\left(z_{1}\cos\theta\right)J_{n}\left(z_{2}\sin\theta\right)d\theta. Participants highlight the special case of \int _{0}^{2\,\pi }\!{{\rm J}_0\left(\cos \left( t \right) \right)}\;{dt}, which is a specific instance of the general problem. The Bessel function J_{m}(x) is emphasized as a critical component in solving these integrals.

PREREQUISITES
  • Understanding of Bessel functions, specifically J_{m}(x) and J_{n}(x).
  • Familiarity with integral calculus, particularly techniques for evaluating definite integrals.
  • Knowledge of analytical methods for solving integrals involving trigonometric functions.
  • Experience with mathematical software tools for symbolic computation, such as Mathematica or MATLAB.
NEXT STEPS
  • Research methods for evaluating integrals involving products of Bessel functions.
  • Explore the properties and applications of Bessel functions of the first kind.
  • Learn about the use of Fourier series in relation to Bessel functions.
  • Investigate numerical methods for approximating integrals that cannot be solved analytically.
USEFUL FOR

Mathematicians, physicists, and engineers working with wave equations, signal processing, or any field requiring the application of Bessel functions in integral calculations.

appelberry
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Hi guys,

Does anyone have any ideas about an analytical solution for the following integral?

[tex] \int_{0}^{2\pi}J_{m}\left(z_{1}\cos\theta\right)J_{n}\left(z_{2}\sin\theta\right)d\theta[/tex]

[tex]J_{m}\left(\right)[/tex] is a Bessel function of the first kind of order m. Thanks.
 
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Can you do the special case
[tex]\int _{0}^{2\,\pi }\!{{\rm J}_0\left(\cos \left( t \right) \right)}\;{dt}[/tex]
 

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