On repulsive gravitational actions

TL;DR

This paper discusses specific cases where Einsteinian gravity exhibits repulsive behavior without a cosmological term, which could be relevant for understanding dark energy and gravitational collapse phenomena.

Contribution

It identifies conditions under which Einsteinian gravity acts repulsively, offering insights into alternative explanations for dark energy and collapse processes.

Findings

Einsteinian gravity can be repulsive in certain regions.

Repulsive gravity occurs without a cosmological constant.

Potential implications for dark energy and gravitational collapse.

Abstract

In particular instances and in particular regions the Einsteinian gravity exerts a repulsive action -- and without any cosmological term. This fact could have an interest for the explanation of the dark energy, and for the gravitational collapses.