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The Constant D as a Natural Stability Threshold for Friedmann Spacetimes

Year: 2026

Type: preprint

Abstract: We conjecture that the mathematical constant D = Sum 1/(2*n!+1) approximately 0.96895 (OEIS A396384) may serve as a natural stability threshold for Friedmann spacetimes in the context of Temple et al. (2026). We derive D from first principles via the de Sitter horizon degeneracy, connect it to the LQC modified Friedmann equation, and propose that 1-D approximately 0.031 represents the distance to the Temple instability.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.20570315

Author: Ivanov, Danylo

Institution: H.S. Skovoroda Kharkiv National Pedagogical University

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7163758266

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