English

Time-periodic universes

Mathematical Physics 2008-09-02 v1 math.MP

Abstract

In this letter we construct a new time-periodic solution of the vacuum Einstein's field equations whose Riemann curvature norm takes the infinity at some points. We show that this solution is intrinsically time-periodic and describes a time-periodic universe with the "black hole". New physical phenomena are investigated and new singularities are analyzed for this universal model.

Keywords

Cite

@article{arxiv.0809.0046,
  title  = {Time-periodic universes},
  author = {De-Xing Kong and Kefeng Liu and Ming Shen},
  journal= {arXiv preprint arXiv:0809.0046},
  year   = {2008}
}

Comments

5 pages

R2 v1 2026-06-21T11:15:16.958Z