Space-time models derived from Schwarzschild's solution

TL;DR

This paper explores two space-time models derived from Schwarzschild's solution, highlighting differences in their implementation of parallelism at a distance and their reference frames, with implications for understanding gravitational fields.

Contribution

It introduces two distinct space-time models from Schwarzschild's solution, emphasizing their differing approaches to parallelism and reference frames.

Findings

One model is expanding, the other is static.

Differences in parallelism implementation affect model properties.

Models offer new perspectives on Schwarzschild's solution.

Abstract

We discuss two space-time models: one is expanding, the other is static. They are both derived from Schwarzschild's exterior solution. But they differ in the implementation of the parallelism at a distance and the choice of their master frame of reference.