Solving Fractional Exponent with Elementary Laplace

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SUMMARY

The discussion focuses on solving the Laplace transform of the function L[f] = (s)^(1/2). Participants explore the feasibility of using elementary Laplace transforms and the convolution rule, specifically setting F(s) = G(s) = s^(1/2) to derive F(s)G(s) = s. The conversation highlights the potential use of the gamma function for computing the inverse Laplace transform, although the participants express uncertainty regarding its application. Overall, the discussion emphasizes the challenges associated with fractional exponents in Laplace transforms.

PREREQUISITES
  • Understanding of Laplace transforms
  • Familiarity with convolution in transform theory
  • Knowledge of the gamma function and its properties
  • Basic calculus, particularly differentiation
NEXT STEPS
  • Research the properties of the Laplace transform for fractional powers
  • Study the convolution theorem in the context of Laplace transforms
  • Learn how to apply the gamma function in inverse Laplace transforms
  • Explore advanced techniques for handling fractional exponents in differential equations
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Students and professionals in mathematics, engineering, and physics who are dealing with Laplace transforms, particularly those encountering fractional exponents in their studies or work.

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Hi

Homework Statement


L[f] = (s)^(1/2)

The Attempt at a Solution


Is there actually an elementary laplace transform that can compute this? I tried using derivative to solve for it, but i'll always be stuck with a fractional exponent.

Thanks
 
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The best thing I could think of is using the convolution rule, i.e. (F(s)G(s) = f(t)*g(t)) where * is convolution. Let F(s)=G(s)=s^(1/2), then F(s)G(s) = s. Can you do the laplace transform of s?
 
Oh, our class hasn't got to that section yet. Maybe I'll be able to solve it tomorrow then. Thanks.
 
I think i might have just thought of something. Would it work if i first took the derivative. Then used the gamma function to compute the inverse laplace transform?
 
The gamma function isn't in a form that is immediately obvious to me to see how it relates to what you have to evaluate.
 

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