摘要A modified Korteweg--de Vries (mKdV) lattice is found to be also a discrete Korteweg--de Vries (KdV) equation. A discrete coupled system is derived from the single lattice equation and its Lax pair is proposed. The coupled system is shown to be related to the coupled KdV and coupled mKdV systems which are widely used in physics.
Abstract：A modified Korteweg--de Vries (mKdV) lattice is found to be also a discrete Korteweg--de Vries (KdV) equation. A discrete coupled system is derived from the single lattice equation and its Lax pair is proposed. The coupled system is shown to be related to the coupled KdV and coupled mKdV systems which are widely used in physics.
LIU Ping;JIA Man; LOU Sen-Yue;. A Discrete Lax-Integrable Coupled System Related to Coupled KdV and Coupled mKdV Equations[J]. 中国物理快报, 2007, 24(10): 2717-2719.
LIU Ping, JIA Man, LOU Sen-Yue,. A Discrete Lax-Integrable Coupled System Related to Coupled KdV and Coupled mKdV Equations. Chin. Phys. Lett., 2007, 24(10): 2717-2719.
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