%0 Journal Article %T Dispersion Relations in Diffraction in Time %A Salvador Godoy %A Karen Villa %J Applied Mathematics %P 464-468 %@ 2152-7393 %D 2024 %I Scientific Research Publishing %R 10.4236/am.2024.157028 %X In agreement with Titchmarsh’s theorem, we prove that dispersion relations are just the Fourier-transform of the identity, g( x )=±Sgn( x )g( x ) , which defines the property of being a truncated functions at the origin. On the other hand, we prove that the wave-function of a generalized diffraction in time problem is just the Fourier-transform of a truncated function. Consequently, the existence of dispersion relations for the diffraction in time wave-function follows. We derive these explicit dispersion relations. %K Diffraction in Time %K Dispersion Relations %K Hilbert Transforms %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=134833