| friedmann robertson walker | FRW | 35 | 10 | 1.001143 | 0808.3182,0808.0936,etc |
| anti de sitter | AdS | 200 | 5 | 2.001235 | 0808.2845,0808.2842,etc |
| post newtonian | PN | 207 | 4 | 2.006871 | 0808.4034,0808.1704,etc |
| null energy condition | NEC | 41 | 4 | 2.000805 | 0808.0839,0808.1931,etc |
| loop quantum cosmology | LQC | 61 | 4 | 2.003623 | 0808.1382,0808.0990,etc |
| ordinary differential equation | ODE | 17 | 3 | 2.000491 | 0808.1943,0808.2315,etc |
| dvali gabadadze porrati | DGP | 68 | 3 | 2.002621 | 0808.3182,0808.2025,etc |
| arnowitt deser misner | ADM | 20 | 3 | 2.000367 | 0808.0839,0808.2842,etc |
| quantum field theory | QFT | 26 | 3 | 1.000461 | 0808.0315,0808.3060,etc |
| gauss bonnet | GB | 37 | 3 | 2.001687 | 0808.2830,0808.1919,etc |
| kaluza klein | KK | 11 | 3 | 1.000514 | 0808.2055,0808.2512,etc |
| universidade do estado do rio de janeiro | UERJ | 6 | 3 | 1.001081 | 0808.2271,0808.2272,etc |