About Symmetries of Exterior Differential Equations , Appropriated to a System of Quasilinear Differential Equations of the First Order

@inproceedings{Harrison2002AboutSO,
  title={About Symmetries of Exterior Differential Equations , Appropriated to a System of Quasilinear Differential Equations of the First Order},
  author={Bradley K Harrison},
  year={2002}
}
Most calculations of symmetries of differential equations are done with the classical L.V. Ovsyannikov method [1]. In 1965 K.P. Surovikhin published a paper [2], in which the differential forms were applied for searching symmetries. In the K.P. Surovikhin paper the system of hyperbolic type equations was considered, and the canonization method for finding… CONTINUE READING