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- We prove the existence of a new kind of solutions for the scalar curvature equation in R(superscript N). 摘要我们证明在R(上标N)上纯量方程某种新解的存在性。
- On the other hand, the boundness of these norms provides the possibility of proving the existence of solutions to the problem. 另一方面，这些范数的有界性为证明解的存在性提供了可能。
- Existence of solutions for a class of semilinear elliptic equations is obtained by the minimax methods incritical point theory. 通过临界点理论中的极小极大方法得到了一个关于一类半线性椭圆方程解存在性的结果.
- In this dissertation, the existence of solutions for variational inequalities related to semi-monotone operators are mainly considered. 本文主要讨论与半单调算子相关的变分不等式解的存在性。
- This paper is concerned with the existence of solutions for a class of stationary model for semiconductor. We also study the semi-classical limit. 摘要研究一类半导体稳态模型的混合边值问题解的存在性，同时也研究了其半古典极限问题。
- In this paper,using KAM theory,we obtain the boundedness of solutions as well as the existence of many invariant tori for jumping nonlinear oscilltions. 利用KAM理论研究了一类跳跃非线性方程解的有界性及大量不变环面的存在性。
- The existence of solutions for a class of elliptic systems is denoted, by Mountain Pass Lemma, the existence result for system of more general operator including p-Laplacian, is obtained. 摘要利用经典的山路引理，证明了在一般形式的算子下，椭圆型方程组非平凡解的存在性。
- In chapter three, we use the same method as using in chapter two, and discuss the existence of solutions for the boundary value problem (BVP) of a class of nonlinear singular systems and a class of nonlinear singular systems with delay. 第三章利用和前一章同样的方法讨论了非线性广义系统和非线性滞后广义系统的边值问题，得到了相应边值问题的解的存在性定理。
- The existence of solutions for singular nonlinear two point boundary value problems subject to Sturm Liouville boundary conditions with p Laplacian operators is studied by the method of upper and lower solutions. 利用上下解方法证明一类具有 p Laplacian算子的Sturm Liouville型二阶非线性奇异微分方程的两点边值问题的解的存在性 .
- In this paper the local existence of solutions for a class of strongly damped wave equations is considered, and the global existence and blow-up of solutions based on the potential well theory is studied. 摘要讨论一类强阻尼波方程解的局部存在性，并利用势井理论研究解的整体存在性和爆破性。
- In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition. 摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
- In this paper, we mainly use variational methods, including the least action principle, minimax theorem and Morse theory, to deal with the existence of solutions of discrete Hamiltonian systems with periodic boundary value conditions. This Ph. 我们利用变分理论中的最小作用原理、极小极大原理，以及Morse理论研究了离散哈密尔顿系统的周期边值问题。
- The newspaper ceased to appear after an existence of three months. 该报发行3 个月后停刊了。
- Potassium is necessary to the existence of all living things. 钾是所有生物生存必须的。
- Supposing the nonlinear term bounded, by using homotopy invariance theorem, we proved the existence of solutions of boundary value problems for a class of nonlinear ordinary differential equations. 摘要在假设一类常微分方程边值问题中的非线性项有界的条件下，运用同伦映射不变性定理，得出了解的存在性结论。
- In this paper the existence of solution of Cauchy problem for Euler equation is discussed. 讨论二维不可压缩Euler方程Cauchy问题解的存在性.
- This paper deals with a necessary condition and a sufficient condition for the existence of solutions for a class of noncoercive variational inequalities and improves the relative results in [1]. 讨论了一类非强制的变分不等式解之存在性的一个必要条件和一个充分条件，改进了文[1]中的相应结果.
- Pollution poses a threat to the continued existence of this species. 污染对这一物种的继续生存造成了威胁。
- The solvability and the existence of solution for a wave equation with periodic condition under strong resonance are studied in the paper. 摘要本文研究波动方程边值问题当非线性项满足强共振条件或为周期函数时的可解性和非平凡解的存在性。
- Heating Refrigeration variety of solutions. 多种供暖制冷的解决方案。
