let be the distribution(adsbygoogle = window.adsbygoogle || []).push({});

[tex] D^{m} \delta (x-a) D^{k} \delta (x) [/tex]

my questions are , what happens whenever x=a or x=a ??

is this identity correct

[tex] \delta (x-a) = e^{-a D} \delta (x)= \sum_{n=0}^{\infty}(-a)^{n} \frac{D^{n}}{n!}\delta (x) [/tex]

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# Distribution question

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