Linear dependence of bessel equation

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SUMMARY

The discussion centers on the linear dependence of Bessel functions in the context of Bessel equations. It establishes that for non-integer values of n, the general solution can be expressed as y(x) = (c1)Jn(x) + (c2)J(-n)x. However, when n is an integer, the functions Jn and J(-n) are not independent due to the relationship J(-n) = (-1)^n Jn, leading to a different solution structure. This distinction is crucial for understanding the behavior of Bessel functions in various applications.

PREREQUISITES
  • Understanding of Bessel functions, specifically Jn and J(-n).
  • Familiarity with the properties of linear dependence in mathematical functions.
  • Basic knowledge of differential equations, particularly Bessel's differential equation.
  • Concept of integer and non-integer values in mathematical contexts.
NEXT STEPS
  • Study the properties of Bessel functions in detail, focusing on their applications in physics and engineering.
  • Explore the implications of linear dependence in solutions to differential equations.
  • Investigate the derivation and applications of Bessel's differential equation.
  • Learn about the significance of integer and non-integer orders in Bessel functions.
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Mathematicians, physicists, and engineers who are working with Bessel functions and their applications in wave propagation, heat conduction, and other areas of applied mathematics.

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why for bessel equations, if n isn't an integer, you can have the solution
y(x)=(c1)Jn(x) +(c2)J(-n)x
but isn't true if n's an integer?
 
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Same answer as to your other question. Jn and J-n are not independent precisely because J-n= (-1)nJn.

http://www.ucl.ac.uk/~ucahdrb/MATHM242/LegBess.pdf
 
thank you!
 

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