(2-DIMENSIONAL DERIVATIVE NONLINEAR SCHRODINGER-EQUATION(1))

A (2 + 1)-dimensional multi-component derivative nonlinear Schrodinger (DNLS) equation is obtained from the symmetry constraint of the modif ied Kadomtsev-Petviashvili equation. The model is proved to be integra ble under the meaning that it possesses the Painleve property and the infinitely many generalized symmetries which constitute a generalized W-infinity algebra. An integrable DNLS hierarchy is obtained from the now equation of infinitely many symmetries of the DNLS equation.