| friedmann robertson walker | FRW | 107 | 14 | 2.001165 | 1004.2488,1004.0818,etc |
| post newtonian | PN | 193 | 8 | 2.004283 | 1004.0961,1004.4209,etc |
| friedman robertson walker | FRW | 21 | 6 | 1.001034 | 1004.4905,1004.1017,etc |
| anti de sitter | AdS | 55 | 6 | 2.001865 | 1004.0071,1004.1493,etc |
| gauss bonnet | GB | 171 | 6 | 2.003549 | 1004.3772,1004.1493,etc |
| kaluza klein | KK | 110 | 5 | 1.002008 | 1004.1546,1004.3558,etc |
| integrated sachs wolfe | ISW | 23 | 4 | 1.000208 | 1004.5602,1004.3294,etc |
| transverse traceless | TT | 18 | 4 | 1.000528 | 1004.1293,1004.4633,etc |
| de sitter | dS | 169 | 4 | 1.004397 | 1004.1110,1004.1493,etc |
| dirac born infeld | DBI | 125 | 4 | 2.003007 | 1004.3734,1004.1493,etc |
| friedmann lema^tre robertson walker | FLRW | 8 | 4 | 1.000192 | 1004.3734,1004.1798,etc |
| dvali gabadadze porrati | DGP | 118 | 4 | 1.000957 | 1004.3294,1004.3086,etc |
| dominant energy condition | DEC | 24 | 4 | 1.001776 | 1004.0525,1004.2362,etc |
| effective one body | EOB | 8 | 3 | 1.000317 | 1004.0961,1004.4209,etc |
| chevallier polarski linder | CPL | 13 | 3 | 1.000462 | 1004.3508,1004.0492,etc |
| newman penrose | NP | 39 | 3 | 1.000983 | 1004.2343,1004.5580,etc |
| einstein hilbert | EH | 55 | 3 | 1.000651 | 1004.5052,1004.1546,etc |
| sunyaev zel'dovich | SZ | 8 | 3 | 1.000092 | 1004.1856,1004.3294,etc |
| quantum field theory | QFT | 13 | 3 | 1.000587 | 1004.5261,1004.0091,etc |
| spin orbit | SO | 11 | 3 | 1.000268 | 1004.5322,1004.4549,etc |
| cient'ficos | CECS | 7 | 3 | 1.000028 | 1004.2718,1004.0737,etc |
| nonlinear connection | N-connection | 46 | 3 | 2.000322 | 1004.0625,1004.0628,etc |