An analytic solution for a fourier transform

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SUMMARY

The discussion focuses on solving the Fourier transform of the function Exp[-w^2]/w^2 using the Residue theorem. The user highlights the challenge posed by the pole at ω=0, which complicates the integral. While Mathematica can provide an analytical solution, the user seeks a manual approach that yields general results. The conversation emphasizes the importance of addressing the pole to properly evaluate the integral.

PREREQUISITES
  • Understanding of Fourier transforms
  • Familiarity with the Residue theorem in complex analysis
  • Knowledge of poles and contour integration
  • Basic proficiency in using Mathematica for verification
NEXT STEPS
  • Research the application of the Residue theorem in Fourier transforms
  • Study techniques for handling singularities in integrals
  • Explore the Fresnel integral and its relation to Fourier analysis
  • Learn about contour integration methods in complex analysis
USEFUL FOR

Students and professionals in mathematics, physicists dealing with signal processing, and anyone interested in advanced techniques for solving Fourier transforms analytically.

jtceleron
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Homework Statement


the function is Exp[-w^2]/w^2, how to solve the Fourier transform analytically with Residue theorem?
It is better if there is more general results.
Mathematica can solve it analytically, but I need a human-soluable way.


Homework Equations





The Attempt at a Solution


My attempt follows the Fresnel integral, but there is still something wrong.
 
Physics news on Phys.org
The integral is undefined as it stands, because there's the pole at [itex]\omega=0[/itex]. You have to specify how to run around this pole first!
 

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