Fetching the paper…
Reading the bibliography…
We point out that past-incompleteness of geodesics in FLRW spacetimes does not necessarily imply that these spacetimes start from a singularity.
D. Boccaletti, V. De Sabbata, P. Fortini, C. Gualdi, Photon-photon scattering and photon-scalar particle scattering via gravitational interaction (one-graviton exchange) and comparison of the processes between classical (general-relativistic) theory and the quantum linearized field theory, Nuovo Cim. B60 (1969) 320–330
1969
Earlier work this paper cites.
S. W. Hawking, R. Penrose, The Singularities of gravitational collapse and cosmology, Proc. Roy. Soc. Lond. A314 (1970) 529–548
1970
Earlier work this paper cites.
S. Hawking, G. Ellis, The Large Scale Structure of Space-Time, Cambridge Monographs on Mathematical Physics, Cambridge University Press, 1973
1973
Earlier work this paper cites.
A. A. Starobinsky, A New Type of Isotropic Cosmological Models Without Singularity, Phys. Lett. B91 (1980) 99–102
1980
Earlier work this paper cites.
A. H. Guth, The Inflationary Universe: A Possible Solution to the Horizon and Flatness Problems, Phys. Rev. D23 (1981) 347–356
1981
Cited alongside, same era.
G. ’t Hooft, Graviton Dominance in Ultrahigh-Energy Scattering, Phys. Lett. B198 (1987) 61–63
1987
Cited alongside, same era.
arXiv:astro-ph/0111191
A. Aguirre, S. Gratton, Steady state eternal inflation, Phys. Rev. D65 (2002) 083507 · 2002
Cited alongside, same era.
arXiv:gr-qc/0110012
A. Borde, A. H. Guth, A. Vilenkin, Inflationary space-times are incomplete in past directions, Phys. Rev. Lett. 90 (2003) 151301 · 2003
Cited alongside, same era.
A. Mithani, A. Vilenkin, Did the universe have a beginning? arXiv:1204.4658
Cited in the paper.
A. Aguirre, Eternal Inflation, past and future arXiv:0712.0571
arXiv:gr-qc/0301042
A. Aguirre, S. Gratton, Inflation without a beginning: A Null boundary proposal, Phys. Rev. D67 (2003) 083515 · 2003
Later among the works it cites.
arXiv:10211082
G. F. R. Ellis, R. Maartens, The emergent universe: Inflationary cosmology with no singularity, Class. Quant. Grav. 21 (2004) 223–232 · 2004
Later among the works it cites.
A. Aab, et al., Measurement of the cosmic ray spectrum above 4 × \times 10 18 · 2015
Later among the works it cites.
alphaXiv searches the wider corpus for related work and actual follow-ups.
alphaXiv is searching for related work…
Cited in the paper.