bgv theorem 1eternal inflation 1expanding spacetime 1null convergence condition 1shear and acceleration effects 1spatial curvature 1
From the 1 of 2 linked papers with an AI index.
2 papers
gr-qc2026
The BGV Theorem and the Null Convergence Condition
William H. Kinney
The paper investigates how the Null Convergence Condition (NCC) and spatial curvature affect the applicability of the Borde‑Guth‑Vilenkin (BGV) theorem, showing that NCC and non‑po…
gr-qc2026
Geodesic Completeness in General Cosmological Scenarios
William H. Kinney
The well-known Borde-Guth-Vilenkin Theorem shows that inflationary spacetimes are generically geodesically past-incomplete, necessitating the existence of a pre-inflationary bounda…