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What is the inverse laplace transform of this?

 
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Jun12-10, 03:15 PM   #1
 

What is the inverse laplace transform of this?


[tex]F(s) = \frac{1}{K^s}[/tex]

where K is a positive real.
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Jun13-10, 09:25 AM   #2
 
Hint:

Write this as exp[-s Log(k)]

Then compare this to the Laplace integral:

Integral of exp(-s t) f(t) dt

So, it looks like if you take f(t) to be a function that has a very large peak around t = Log(K), you'll get the correct Laplace transform up to some normalization. Now think of making this line of reasoning more precise...
Jun13-10, 04:35 PM   #3
 
So is it [tex]\delta(t-\log(K))[/tex]?
Jun13-10, 05:10 PM   #4
 

What is the inverse laplace transform of this?


Quote by Charles49 View Post
So is it [tex]\delta(t-\log(K))[/tex]?
That's right!
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