%0 Journal Article %T Dilaton Field and Massless Particle for 2d Gravity %A George Chechelashvili %A George Jorjadze %J Physics %D 1999 %I arXiv %X It is shown that the model of 2d dilaton gravity is equivalent to the dynamical system of massless particles in the Liouville field. %U http://arxiv.org/abs/hep-th/9908206v1