An integral about Bessel function

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SUMMARY

The integral $$\int^\infty_0\frac{J^3_1(ax)J_0(bx)}{x^2}dx$$ requires a closed-form solution involving Bessel functions of the first kind, specifically $J_1$ and $J_0$. The discussion highlights the utility of the property $$\frac{J_{n}(x)}{x}=\frac{J_{n-1}+J_{n+1}}{2n}$$ and the orthonormality relation $$\int^\infty_0 J_{n}(ax)J_{n}(bx)xdx=\frac{1}{a}\delta(a-b)$$. Participants seek references or solutions from computational tools to evaluate this integral.

PREREQUISITES
  • Understanding of Bessel functions, specifically $J_0$ and $J_1$
  • Knowledge of integral calculus and improper integrals
  • Familiarity with orthonormality concepts in function analysis
  • Experience with mathematical software for symbolic computation, such as Mathematica or MATLAB
NEXT STEPS
  • Research the closed-form solutions for integrals involving Bessel functions
  • Explore the properties of Bessel functions, particularly their orthogonality and recurrence relations
  • Learn how to implement Bessel function calculations in Mathematica or MATLAB
  • Investigate numerical integration techniques for evaluating complex integrals
USEFUL FOR

Mathematicians, physicists, and engineers working with Bessel functions, as well as students and researchers interested in advanced integral calculus and mathematical analysis.

zluo
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Is there somebody who knows the solution (closed form) for the integral
$$\int^\infty_0\frac{J^3_1(ax)J_0(bx)}{x^2}dx$$
where $a>0,b>0$ and $J(\cdot)$ the bessel function of the first kind with integer order?

Reference, or solution from computer programs all are welcome. Thanks!
 
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zluo said:
Is there somebody who knows the solution (closed form) for the integral
$$\int^\infty_0\frac{J^3_1(ax)J_0(bx)}{x^2}dx$$
where $a>0,b>0$ and $J(\cdot)$ the bessel function of the first kind with integer order?

even if belatedly believe that this property of bessel funtions is useful
$$\frac{J_{n}(x)}{x}=\frac{J_{n-1}+J_{n+1}}{2n}$$
with the orthonormality of bessel functions
$$\int^\infty_0 J_{n}(ax)J_{n}(bx)xdx=\frac{1}{a}\delta(a-b)$$
$$\int^\infty_0\left(\frac{J_1(ax)}{x}\right)^{3}J_0(bx)xdx =\int^\infty_0\left(\frac{J_{1-1}+J_{1+1}}{2\cdot1}\right)^{3}J_0(bx)xdx=\dots$$
 

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