The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
New isotropic and anisotropic sudden singularities
Open accessAbstract
We show the existence of an infinite family of finite-time singularities in isotropically expanding universes which obey the weak, strong and dominant energy conditions. We show what new type of energy condition is needed to exclude them ab initio . We also determine the conditions under which finite-time future singularities can arise in a wide class of anisotropic cosmological models. New types of finite-time singularity are possible which are characterized by divergences in the time rate of change of the anisotropic-pressure tensor. We investigate the conditions for the formation of finite-time singularities in a Bianchi-type VII 0 universe with anisotropic pressures and construct specific examples of anisotropic sudden singularities in these universes.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Wald, R. M. (1983) · Physical Review D · doi:10.1103/physrevd.28.2118 · Cited by 838
Cited by
Modified gravity theories on a nutshell: Inflation, bounce and late-time evolution
Nojiri, S., Odintsov, S. D., & Oikonomou, V. K. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.06.001 · Cited by 2,734
Bamba, K., Capozziello, S., Nojiri, S., & Odintsov, S. D. (2012) · Astrophysics and Space Science · doi:10.1007/s10509-012-1181-8 · Cited by 2,387
Bamba, K., Odintsov, S. D., Sebastiani, L., & Zerbini, S. (2010) · The European Physical Journal C · doi:10.1140/epjc/s10052-010-1292-8 · Cited by 438
Bamba, K., Nojiri, S., & Odintsov, S. D. (2008) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2008/10/045 · Cited by 389
A nonsingular, anisotropic universe in a black hole with torsion and particle production
Popławski, N. J. (2021) · General Relativity and Gravitation · doi:10.1007/s10714-021-02790-7 · Cited by 12
Metadata
- Authors
- Barrow, J. D., & Tsagas, C. G.
- Venue
- Classical and Quantum Gravity
- Publisher
- IOP Publishing
- Published
- 2005-04-06
- Volume
- 22
- Issue
- 9
- Pages
- 1563-1571
- ISSN
- 0264-9381 (ISSN-L)
- 1361-6382
- OpenAlex
- W2066277735
- Cited by
- 168
- References
- 1
- FWCI
- 8.98
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: New isotropic and anisotropic sudden singularities. https://app.cochat.ai/papers/10.1088/0264-9381/22/9/006
- The paper
- Barrow, J. D., & Tsagas, C. G. (2005). New isotropic and anisotropic sudden singularities. Classical and Quantum Gravity. https://doi.org/10.1088/0264-9381/22/9/006
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.