English

A Closed Universe with Maximum Life-Time

General Relativity and Quantum Cosmology 2019-05-29 v1

Abstract

A closed universe with maximum life-time is constructed using optimal control. Einstein's field equations are used with varying cosmological "constant". The second time derivative of the Hubble parameter acts as the control function in the optimal control model.

Keywords

Cite

@article{arxiv.1905.11525,
  title  = {A Closed Universe with Maximum Life-Time},
  author = {Salah Haggag and Samy A. Abdel-Hafeez and Moutaz Ramadan},
  journal= {arXiv preprint arXiv:1905.11525},
  year   = {2019}
}
R2 v1 2026-06-23T09:27:51.600Z