Based on the definition of Dirac Delta as: $\delta(x) = \lim_{e\to 0} \mu(x,e)$

Is it possible to obtain an expression of $\mu$ as a series of Bessel's functions $J_n$ or in which satisfy the definition of delta.

Any recommended reference?

Thanks a lot!!


  • $\begingroup$ Second item in A&S. ν =0 . Prove. Integral is better than limit. $\endgroup$ – Cosmas Zachos Feb 6 '19 at 23:22

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