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Product with a delta function

  1. Aug 24, 2011 #1

    I was wondering about something a friend told me. He said that we can regularize this product in this form

    [itex]sgn(x)^2 \delta(x)=\frac{\delta(x)}{3}[/itex]

    Any guess on how to derive it

  2. jcsd
  3. Aug 24, 2011 #2
    Ok, finally I have it.
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