查询词典 semilinear

Some approximate controllability of semilinear control systems using fundamental assumptions on the systems components have been established.

为了分析这些控制工程中的复杂问题，人们使用越来越多的前沿数学技巧和方法，这便导致了非线性控制系统众多理论的发展。

The existence of positive entire solutions for a class of semilinear elliptic equations in Rn is discussed.

首先给出此方程的径向解，并以它及上下解为主要工具证明了在不同条件下方程存在正整体解。

The key of our method is to reduce the exact controllability of a semilinear system to the observability estimate for the dual system of its linearized system.

另一方面，我们注意到，上述的两种方法无法给出任何能观性不等式中出现的常数的显式估计，因为它们采用的是反证法来吸收低阶项的。

Then, one class of second-order semilinear differential systems with two parameters is considered.

第五章，用锥上的Deimling不动点定理分别讨论了依赖于参数的一阶中立型泛函微分方程和一阶中立型泛函微分系统，导出了一阶中立型泛函微分方程以及一阶中立型泛函微分系统存在两个正周期解，存在一个正周期解以及不存在正周期解的充分条件。

In this paper, we obtain the global exact controllability for a class of multidi-mensional semilinear hyperbolic equations with a superlinear nonlinearity.

在这篇文章中，我们得到了非线性函数在无穷远处超线性增长时一类高维半线性双曲方程的整体精确能控性。

This thesis is concerned with the existence of solutions of semilinear evolution impulsive equations as well as the existence of positive solutions of them. And the existence of solutions for terminal problems of impulsive differential equations is also concerned in this thesis.

本文主要研究半线性发展脉冲微分方程解和正解的存在性，以及脉冲微分方程终值问题解的存在性。

Chapter 1 deals with the global existence of solutions for abstract semilinear RFDEs withinfinite delay.

第一章讨论抽象半线性无穷时滞RFDEs解的全局存在性。

The second part of this paper is to consider the Fujita critical exponent of the semilinear parabolic equation with Neumann boundary value on unbounded daomain.

第二部分是对无界区域上带Neumann边值的半线性抛物方程的Fujita临界指数的研究。

Gatti studied the inverse problem of source term for semilinear parabolicequation,which arises from the industrial combustion process.

Gatti对半线性抛物算子的非线性源项进行了研究，仅仅得出了源项反问题解的存在性结果。

The dynamics of coupled system of semilinear parabolic equations with time delays is investigated using upper and lower solutions and its associated monotone iterations. The asymptotic behavior of solutions is given.

利用上、下解方法及相应的单调迭代序列研究具有时滞的耦合半线性抛物方程组的动力学行为，给出了解的渐近性质。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新