排序方式: 共有86条查询结果,搜索用时 0 毫秒
71.
In this paper, the balanced economic growth path was considered in a new growth model with endogenous technical progress. It is not only obtained the optimal allocation about capital and labor between a goods-producing sector and a R&D Sector, but also the optimal value of saving rates. By discussing the effect of parameters, it are also got the following results: When the rate of time preference (discount factor) rising, the fractions of Capital and labor in the goods-producing sector will increase , the fractions in R&D sector and the saving rates will decrease; When the population grows rapidly, the result will be contrary. 相似文献
72.
73.
具无限时滞的中立型随机泛函微分方程解的存在唯一性 总被引:1,自引:0,他引:1
The main aim of this paper is to establish the existence-and-uniqueness theorem for neutral stochastic functional differential equations with infinite delay at phase space BC((-∞, 0]; R^n) An example is given for illustration. 相似文献
74.
75.
研究了一类具有多个时滞的随机神经网络的均方指数稳定性问题,应用Lyapunov-Krasovskii泛函稳定理论和线性矩阵不等式(LMI)方法,建立了该系统解的指数稳定判别准则,最后通过数值举例阐述了结果的有效性. 相似文献
76.
非线性项有非线性增长的高阶多点边值问题 总被引:1,自引:0,他引:1
本文考虑以下高阶多点边值问题:,其中关于f有非线性增长的情况,利用基于度理论的不动点定理,对上述边值问题建立了存在唯一性定理. 相似文献
77.
本文考虑 Banach 空间中形如“x(t)=(?)G(t,s)[λAx(s) f(s,P_1x(s),…,P(?)x(s),λ)]ds”的 Hammerstein 型积分方程,给出了这样一个方程存在分歧点的某些充分条件. 相似文献
78.
本文考虑一定有序局部紧空间上含多重积分的Volterra型积分方程,给出了此类方程可解的充分条件,建立了相应的积分不等式.本文结果包含许多已知结论作为特殊情况. 相似文献
79.
80.
This paper considers the following boundary value problems for functional differential equations: x' (t) = f(t, xt) (0相似文献