Equation Icon  ab mn 2 ab an bm 1-ab mt nc /\ = -h @mnh + @mh @nh + 2g gmn@ch @th -gamg @ hbt@ hnc - gbmg @ hat@ hnc + g gct@ ham@ hbn nt c m nt c m mn c t + 1(2gamgbn - gabgmn)(2gctgep - gtegcp)@mhcp@nhte. (15) 8