证明了抽象空间中一类T 单调算子的最大、最小不动点定理，改进了已知文献的结果。
The maximal and minimal fixed points theorems for a class of T monotone operators in abstract spaces are proved, and some well known results are improved.
利用算子方程的一些抽象结果来讨论四阶奇异边值问题。
By some abstract results of operator equation, the fourth order singular boundary value problem was discussed.
用积分算子求解法 ，得到了具有反射边界条件的、含控制参数的抽象动力方程边值问题的解。
The conclusion derived from the comparison between the two methods is useful to the integral operator solution.
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