# Is the Dirac measure named after P.A.M. Dirac?

Does anyone know if the notion of a Dirac measure was named after P.A.M. Dirac? If yes, did he actually introduce it, or is it because integration w.r.t. a Dirac measure does what the so-called Dirac delta function is supposed to be used for?

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yes of course. it is very likely however that he didn't know any measure theory at all, and distribution theory neither (in fact it was developed by schwartz in the 1950's). – user55315 Jan 29 '13 at 17:12