Question

The k-th derivative of this function is negative one to the k times the k-th derivative of test functions phi evaluated at zero. For a non-zero scalar alpha, this function of alpha-x equals this function of x divided by the magnitude of alpha. The convolution (-5[1])of this function with any other tempered distribution S is S since its Fourier transform is 1. (-5[1])Applying an operator to its associated (*) Green’s function gives this distribution. (-5[1])This distribution’s sifting property integrates (0[1])over all space and will return another function’s evaluation where this distribution is centered. (10[1])This distribution is the derivative of the Heaviside step function and is the limit (10[1])of a Gaussian as it gets taller (10[1])and thinner. For 10 points, name this distribution which is zero everywhere except at the origin, where it is infinite. ■END■ (10[2])

ANSWER: Dirac delta function [or Dirac delta distribution; or unit impulse]
<BW, Other Science>
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