By a generalized version of ags reduction procedure we show that the forms of quantum dynamics at different strata are the same . this is the self - similarity of quantum dynamics 摘要推广少体问题中的ags约化理论，证明量子动力学在不同层次具有相同形式，称为量子动力学的自相似。
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Three eigenvalue problems associated with the same isospectral evolution equation are proposed . the corresponding nonlinearized eigenvalue problems and their relations are studied by the reduction procedure 摘要通过约化理论，研究了对应于同一离散孤立子方程族的三个离散特征值问题的非线性化特征值问题以及它们之间的关系。
