Abstract A(2+1)-dimensional multi-component derivative nonlinear Schr$\ddot{o}$dinger (DNLS) equation is obtained from the symmetry constraint of the modified Kadomtsev-Petviashvili equation, The model is proved to be inte- grable under the meaning that it possesses the Paitdevé property and the infinitely many generalized symmetries which constitute a generalized W$\infty$ algebra, An integrable DNLS hierarchy is obtained from the flow equation of infinitely many symntetries of the DNLS equation.
Received: 30 January 1997
Accepted manuscript online:
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