Simple integration of bessel functions

In summary, the conversation is about seeking a way to integrate J0, a Bessel function. The person mentions trying to use identities and references a book called "Abramowitz and Stegun" for more information. They also provide a link to an online copy of the book and a website with more information about integrating Bessel functions.
  • #1
Mappe
30
0
I seek a way to integrate J0, bessel function. I try to use some of the identities I can find, but it takes me no were. Please help!
 
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  • #2
The simple integral of an integer order Bessel function is given by Struve functions. You can find them in ch. 11 , "Integrals of Bessel Functions" of Abramowitz and Stegun. If you are serious about math, buy a copy (the Dover edition is inexpensive). For now you can browse an old online copy here
http://www.convertit.com/Go/Convertit/Reference/AMS55.ASP"
 
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  • #3
Have a look at

http://www.fh-jena.de/~rsh/Forschung/Stoer/besint.pdf
 

1. What are Bessel functions and how are they used in integration?

Bessel functions are a type of special function that arises in many areas of mathematics and physics. They are particularly useful in solving differential equations and representing solutions to wave equations. In integration, Bessel functions are often used to evaluate integrals involving trigonometric functions or exponential functions.

2. How are Bessel functions different from other types of functions?

Bessel functions are different from other types of functions because they are defined by a second-order linear differential equation, rather than a specific formula. This means that they can take on many different forms, depending on the specific parameters of the equation.

3. Can Bessel functions be integrated analytically or do they require numerical methods?

Some Bessel functions can be integrated analytically, while others require numerical methods. The simpler forms, such as the standard Bessel functions, can be integrated analytically using techniques such as integration by parts or substitution. However, more complicated forms may require numerical integration techniques such as the trapezoidal rule or Simpson's rule.

4. Are there any applications of Bessel functions in real-world problems?

Yes, Bessel functions have many applications in real-world problems. For example, they are used in engineering and physics to model oscillatory systems, such as vibrations of a drumhead or the behavior of a spring. They also have applications in signal processing and image filtering.

5. Is there a specific method for integrating Bessel functions?

Yes, there are several methods for integrating Bessel functions, depending on the specific form of the function. Some common techniques include using recurrence relations, contour integration, and the method of steepest descent. The best method to use will depend on the specific problem at hand.

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