nonlinear singular elliptic problem
nonlinear singular elliptic problem
非线性奇异椭圆问题
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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In this paper, a singular nonlinear elliptic boundary value problem which is very important in applied science and pure theory was discussed by the method of perturbation, sub-and super-solution.
本文利用摄动方法和上下解方法，讨论了一类奇异非线性椭圆边值问题，它具有很好的应用背景和理论意义。
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