ultradistribution

ultra- +‎ distribution

ultradistribution (plural ultradistributions)

1. (mathematics) A continuous linear functional.
   • 2015, Andreas Debrouwere, Jasson Vindas, “Discrete characterizations of wave front sets of Fourier-Lebesgue and quasianalytic type”, in arXiv‎:

     It is shown that the microlocal properties of an ultradistribution can be obtained by sampling the Fourier transforms of its localizations over a lattice in ${\displaystyle \mathbb {R} ^{d}}$.