On a duality between time and space cones
arXiv:2003.12478
Abstract
We give an exact mathematical construction of a spacelike order , which is dual to the standard chronological order in the -dimensional Minkowski space , and we discuss its order-theoretic, geometrical as well as its topological implications, conjecturing a possible extension to curved spacetimes.
https://journalskuwait.org/kjs/index.php/KJS/article/view/7298/372