ultrahyperbolic en · ADJ
Etymology
From ultra- + hyperbolic.
Meanings
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(not-comparable) Pertaining to an ultrahyperbolic equation.
Ricci-flat metrics of the ultrahyperbolic signature which enjoy the l-conformal Galilei symmetry are constructed.
2015, D. Chernyavsky, A. Galajinsky, “Ricci-flat spacetimes with l-conformal Galilei symmetry”, in arXiv: