What is the Laplace transform of gamma function?

$\begingroup$

What is $$\mathfrak L (\Gamma(z))$$? And how can it be derived?

$$\Gamma(z)=\int_0^\infty t^{z-1}e^t dt$$

$$\mathfrak L(\Gamma(z)) = \int_0^\infty \int_0^\infty t^{z-1}e^t dt e^{-sz} dz$$

Yes, of course I tried to find on google but I could only find something like laplace transform using the gamma function, and inverse Laplace transform of gamma function, etc..

Also I tried by myself, but no fruit..

This result may be applied to solving gamma functional equation, which is in another question.

$\endgroup$ 7

1 Answer

$\begingroup$

You can't find it because it does not exist:$$\lim_{n \to \infty} \frac{n!}{e^{an}}=\infty \quad \forall a \in \mathbb{R}$$

$\endgroup$ 2

Your Answer

Sign up or log in

Sign up using Google Sign up using Facebook Sign up using Email and Password

Post as a guest

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

You Might Also Like