INFINITELY MANY SYMMETRIES OF THE BILINEAR KADOMTSEV-PETVIASHVILI EQUATION
LOU SEN-YUE (楼森岳)a, LIN JI (林机)b, ZHANG JIE-FANG (张解放)b, XU XUE-JUN (许学军)b
a Institute of Modern Physics, Ningbo Normal College, Ningbo 315211, China and Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China; b Department of Physics, Zhejiang Normal University, Jinghua 321004, China
Abstract A simple formula for symmetries of the bilinear Kadomtsev- Petviashvili equation (BKPE) is given by using a direct method presented by Lou. The symmetry algebra of the BKPE is not isomorphic to those of the usual KP equation though these equations are related by the well known Cole-Hopf transformation.
Received: 15 June 1993
Accepted manuscript online:
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