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1 (b) Show that the distribution i d³ k G(x, m) -(eikx - e-ika) = (2π)3 2wk is identical to its representation i G(x, m)
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1 (b) Show that the distribution i d³ k G(x, m) -(eikx - e-ika) = (2π)3 2wk is identical to its representation i G(x, m)
1 (b) Show that the distribution i d³ k G(x, m) -(eikx - e-ika) = (2π)3 2wk is identical to its representation i G(x, m) = (2+)3d¹ke (kº)8(k² — m²)eškz - where e(kº) = 1 if kº > 0 and e(kº) = -1 if kº < 0.
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