In the present paper, the semi-commutative differential oparators associated with the 1-dimensional Dirac operator are constructed. Using this results, the hierarchy of the mKdV (-) polynomials are expressed in terms of the KdV polynomials. These formulas give a new interpretation of the classical Darboux transformation and the Miura transformation. Moreover, the recursion operator associated with the hierarchy of the mKdV (-) polynomials is constructed by the algebraic method.
Cite this paper
M. Matsushima and M. Ohmiya, "Semi-Commutative Differential Operators Associated with the Dirac Opetator and Darboux Transformation," Advances in Pure Mathematics, Vol. 3 No. 1, 2013, pp. 209-213. doi: 10.4236/apm.2013.31A029.
 R. M. Miura, “Korteweg—De Vries Equation and Generalizations. I. A Remarkable Explicit Nonlinear Transformation,” Journal of Mathematical Physics, Vol. 9, No. 8, 1968, pp. 1202-1204. doi:10.1063/1.1664700
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 M. Matsushima and M. Ohmiya, “An Algebraic Construction of the First Integrals of the Stationary KdV Hierarchy,” Proceeding of ICNAAM: Numerical Analysis and Applied Mathematics, Vol. 1, 2009, pp. 168-172.