English

About the mass problem

General Relativity and Quantum Cosmology 2009-06-12 v1

Abstract

The concept of {\it active gravitational mass}, its definition and its relation with the sources of a gravitational field, was clearly established by Tolman in 1934. On the contrary, and surprisingly in our opinion, the concept of {\it proper mass} has remained obscure in General relativity. We compare a new definition to an apparent more obvious one and discuss how each choice modifies the ratio of active to proper gravitational mass.

Cite

@article{arxiv.0906.2170,
  title  = {About the mass problem},
  author = {Ll. Bel and J. Martin-Martin},
  journal= {arXiv preprint arXiv:0906.2170},
  year   = {2009}
}

Comments

Latex, 12 pages

R2 v1 2026-06-21T13:12:29.282Z