The standard 4-dimensional Minkowski space-time of special relativity is based on the 3-dimensional Euclidean metric. In 1967, H. Busemann showed that similar static space-time models can be based on an arbitrary metric space. In this paper, we search for the broadest possible generalization of a metric under which a construction of a static spacetime leads to a physically reasonable space-time model. It turns out that this broadest possible generalization is related to the known notion of a quasi-pseudometric. 1 Computational Motivations Status of this section. In this introductory section, we present the main motivation for this paper--to enhance computational modelling of space-time. The area of computational modelling of space-time is, by definition, very interdisciplinary, it includes mathematicians and computer scientists interested in physical applications and physicists interested in computational aspects of their research. To help readers with different backgrounds better und...
Hans-Peter A. Künzi, Vladik Kreinovich