On the basis of principle and struture of GM(1, 1)model, and a series of derivation and transformation, the direct model operation method from original sequence was given.
从GM（1，1）的建模原理和模型结构特征出发，通过一系列的推导、变换，给出了直接从原始序列出发求解模型的方法。
Methods Using the fundamental solution of the biharmonic operator, the sequence of fundamental solutions is defined and theoretical derivation is given.
方法利用重调和算子的基本解，定义一基本解系列，进行理论推导。
Methods Using the fundamental solution of the biharmonic operator, the sequence of fundamental solutions is defined and theoretical derivation is given.
方法利用重调和算子的基本解，定义一基本解系列，进行理论推导。
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