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中文摘要：
研究弹性理论中一类非自伴算予矩阵的本征向量展开定理.证明了其本征向量组具有辛正交性,给出了本征向量组完备的充分必要条件,并将所得结果应用于板弯曲问题和矩形薄板均匀变压屈曲挠度方程中.
英文摘要：
For a class of operator matrices appearing in elasticity,the eigen-vector expansion theorem is considered.It is shown that the eigen-vectors possess the symplectic orthogonality.And a necessary and sufficient condition for the completeness of the eigen-vector system is further given.As concrete applications,the obtained results are tested for the plate bending equation and the buckling deflection problem of rectangular thin plates.
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