Graphical Representation of Invariants and Covariants in General Relativity

الأصل · EN

We present a grapical way to describe invariants and covariants in the (4 dim) general relativity. This makes us free from the complexity of suffixes. Two new off-shell relations between (mass) 6invariants are obtained. These are important for 2-loop off-shell calculation in the perturbative quantum gravity. We list up all independent invarians with dimensions of (mass) 4and (mass) 6. Furthermore the explicit form of 6 dim Gauss-Bonnet identity is obtained.