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 January 3rd, 2019, 12:46 PM #1 Newbie   Joined: Dec 2017 From: vienna Posts: 12 Thanks: 1 Heaviside function Hi guys, can anyone give me an appropriate way to get the Fourier transform of the Heaviside function in the sense of distributions? Thanks guys. Last edited by skipjack; January 3rd, 2019 at 05:37 PM.
 January 3rd, 2019, 05:40 PM #2 Global Moderator   Joined: Dec 2006 Posts: 20,969 Thanks: 2219 What definition of the Fourier transform should we use?
 January 4th, 2019, 06:51 AM #3 Newbie   Joined: Dec 2017 From: vienna Posts: 12 Thanks: 1 well it s quite crutial here ,but i believe that one uses \hat{H}(\phi)=H(\hat{\phi}) ,for phi a schwarz function and H tempered distribution
 January 4th, 2019, 06:53 AM #4 Newbie   Joined: Dec 2017 From: vienna Posts: 12 Thanks: 1 But still i miss a term somehow since fourier transform of heaviside is given by pi\delta(k)+1/ik

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