A relative Kuznietsov trace formula on G(2)

In this paper, we set up the general formulation to study distinguished res idual representations of a reductive group G by the relative trace formula approach. This approach simplifies the argument of [JR], which deals with t his type of relative trace formula for a special symmetric pair (GL(2n), Sp (2n)) and also works for non-symmetric, spherical pairs. To illustrate our idea and method, we complete our relative trace formula (both the geometric side identity and the spectral side identity) for the case (G(2), SL(3)).