By some abstract results of operator equation, the fourth order singular boundary value problem was discussed.

利用算子方程的一些抽象结果来讨论四阶奇异边值问题.

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The dissertation investigates the regularized iterative gradient - type methods for ill - posed nonlinear operator equation.

本文主要研究用正则化迭代梯度法求解不适定非线性算子方程.

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