English

Cosmic Topology : Twenty Years After

Cosmology and Nongalactic Astrophysics 2015-06-17 v2

Abstract

What is the shape of the Universe? Is it finite or infinite ? Is space multi-connected to create ghost images of faraway cosmic sources? After a "dark age" period, the field of cosmic topology has now become one of the major concerns in astronomy and cosmology, not only from theorists but also from observational astronomers. Here I give a personal account of the spectacular progress in the field since the beginning of the 1990's, when I started to work in it.

Keywords

Cite

@article{arxiv.1310.1245,
  title  = {Cosmic Topology : Twenty Years After},
  author = {Jean-Pierre Luminet},
  journal= {arXiv preprint arXiv:1310.1245},
  year   = {2015}
}

Comments

14 pages. Contribution to a special issue of the journal "Gravitation and Cosmology" devoted to the 75th birthday of Prof. Andrey Grib. Version 2 (some sentences have been rephrased to avoid text overlap with arXiv:1303.5086, arXiv:1303.4226, arXiv:1104.0015 by other authors). arXiv admin note: text overlap with arXiv:0802.2236

R2 v1 2026-06-22T01:40:21.253Z