摘要
Recently Lax operator algebras of many known integrable systems in 1 + 1 dimensions have been presented by direct computation. The aim of this letter is to give a systematic description for Lax operator algebras of integrable systems. In accordance with Ref. [ 4], let B denote all complex （or real）C<sup>∞</sup>-differentiable functions P[u] = P（x, t, u）, B<sup>r</sup>={(P<sub>1</sub>,…,
