• 通过构造适当的上下解证明存在性

    By constructing proper upper-lower solutions, the existence of travelling wave solutions was proved.

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  • 对于初值问题采用上下单调迭代方法求

    Upper lower solutions method and monotone iterative technique are applied to initial value problem.

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  • 上下应用到相应有限差分系统上,得到两个迭代序列

    Using the method of upper lower solutions we construct two monotone sequences for the finite difference equations.

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  • 使用的主要方法不动理论拓扑理论上下方法

    Some efficient tools such as topological degree theory, fixed point theory and lower and upper method have been applied.

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  • 方法应用单调迭代技术结合上下讨论最大最小的存在性。

    Methods The method of upper and lower solutions and the monotone iterative technique were used to establish our results.

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  • 我们利用正则化方法上下技巧给出局部古典整体古典存在唯一性

    We will use regularization method and upper and lower solution technique to give the local existence, global existence and uniqueness results.

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  • 运用正则方法上下技巧证明上述问题古典局部存在性及其可延拓性。

    The method of regularization and the technique of upper and lower solutions are employed to show the local existence and the continuation of the positive classical solution of the above problem.

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  • 方法采用上下解的方法、单调迭代法、比较原理极值原理以及特征值理论进行了研究。

    Methods the upper-lower solutions, monotone derivative methods, the maximum principle, comparison principle and principal eigenvalue theory were used.

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  • 第二章上下方法研究耦合线性抛物方程组的动力学行为给出的渐近行为

    The dynamics of coupled systems of semilinear parabolic equations are investigated using the method of upper and lower solutions. The asymptotic behavior of the solutio is given.

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  • 方法运用极值原理上下解分歧理论线性算子扰动理论分歧的稳定性理论进行研究。

    Methods the maximum principle, monotone method, bifurcation theory, the perturbation theorem for linear operators and the stability theorem for bifurcation solutions were used.

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  • 利用打靶上下不动定理等工具研究区域上一类非局部条件非线性扩散方程

    The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.

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  • 其次,运用比较引理,通过构造上下解证明支集具有瞬间收缩性质充要条件依赖变化系数的性态。

    Then, at the aid of comparison lemmas, we will prove the property of instantaneous shrinking of support depends on the behaviors of variational coefficient.

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  • 本文利用摄动方法上下法,讨论了一类奇异非线性椭圆问题具有好的应用背景和理论意义。

    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.

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  • 研究一类四阶微分方程存在性,利用上下单调迭代方法得出类四阶方程的最大和最小的存在。

    We obtain the existence of extremal solutions of the boundary value problem by using the method of lower and upper solutions coupled with monotone iterative technique.

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  • 构造了一对合适上下利用单调迭代方法证明模型两个平衡点之间行波存在性进一步丰富单调方法的内容。

    This paper uses the monotone iterative technique to investigate the existence of the solutions of a class of boundary value problem for third-order differential equation.

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  • 运用上下,不指数理论局部分歧理论,得出系统存在多个惟一条件,即参数的个数有一定影响。

    By means of lower-upper solutions methods, theory of fixed point indices and local bifurcation theory, the conditions for multiplicity and uniqueness positive solutions of this system was obtained.

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  • 利用变形边界函数法与上下解方法,研究一类具非线性边界条件半线性时滞微分方程边值问题,得到了边值问题存在性的充分条件。

    The asymptotic behavior for a class of higher-order delay partial differential equations be investigated in this paper, some asymptotic behavior be established, which expanded some references.

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  • 瞧不起网络文化”,网络文化乏味无聊、自以为是、一知半没有上下文语境衔接。

    I despise "Internet culture". It's so pointless, so self-fulfilling, so completely insular and without context.

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  • 如果上下路途耗时多,喜欢自驾车旅游,或喜欢健身的同时听一点有趣的东西闷,那你也许需要网上找一些有声书籍。不管出于何目的,免费当然就是最好的了。

    Whether you are looking for audiobook files for a long commute, road trip or to spice up a workout, you can find free downloads online.

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  • 但是纵观第九上下文﹐没有显示应采用「一日为一年」的原则

    There is nothing in the context of chapter nine that suggests careful application of the year day principle, either in this text or other texts.

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  • 但是纵观第九上下文﹐没有显示应采用「一日为一年」的原则

    There is nothing in the context of chapter nine that suggests careful application of the year day principle, either in this text or other texts.

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