共查询到20条相似文献,搜索用时 78 毫秒
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给出了广义Vandermonde行列式的一种求法,并运用它给出了Lagrange插值公式的几个证明. 相似文献
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关于反向正几何规划最优解的几个条件 总被引:2,自引:0,他引:2
隋树林 《数学的实践与认识》1993,(4)
本文讨论了一般反向正几何规划的性质,得到了几个结果,并给出了反向正几何规划有最优解的几个条件. 相似文献
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反向基本不等式及应用 总被引:1,自引:1,他引:0
运用导数方法,对两个正数的基本不等式中的权数作了分析研究,给出了基本不等式的三个反向不等式;运用反向不等式,通过选取适当的权数,给出了指数平均的反向不等式,同时给出了涉及A,G,L,E的几个新的不等式. 相似文献
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给出了随机环境中马氏链状态必然是弱常返或强暂留的几个充分条件,引入了状态周期的概念,得到类似于经典马氏链状态周期的几个性质.引入了随机环境中马氏链状态的几个数字特征,给出了随机环境中马氏链状态是弱常返与强常返等价的充分条件,利用这一条件可以说明相关文献所出现的错误结论. 相似文献
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本文从一般完全离散保单在各评估日的现金流模型出发 ,讨论了在随机利率环境下保单前瞻亏损的期望与方差的计算方法 ,给出了相应的公式 ,并结合具体实例进行了计算 相似文献
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PROPERTIES OF FRACTIONAL k-FACTORS OF GRAPHS 总被引:1,自引:0,他引:1
In this paper the properties of some maximum fractional [0, k]-factors of graphs are presented. And consequently some results on fractional matchings and fractional 1-factors are generalized and a characterization of fractional k-factors is obtained. 相似文献
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高凌云 《数学物理学报(B辑英文版)》2012,32(2):800-806
In this article,we mainly investigate the growth and existence of meromorphic solutions of a type of systems of composite functional equations,and obtain some interesting results.It extends some result... 相似文献
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In this paper the properties of some maximum fractional [0, κ]-factors of graphs are presented. And consequently some results on fractional matchings and fractional 1-factors are generalized and a characterization of fractional k-factors is obtained. 相似文献
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In this paper the properties of some maximum fractional [0, κ]-factors of graphs are presented. And consequently some results on fractional matchings and fractional 1-factors are generalized and a characterization of fractional κ-factors is obtained. 相似文献
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Xie Xin He Guangming Cao Jinde 《Annals of Differential Equations》2005,21(3):469-473
Using Fourier series theory and techniques of real analysis inequality, some sufficient conditions of existence and uniqueness of periodic solutions for a class of fourth order neutral differential equations with some delays are obtained, the results extend and improve some known results. 相似文献
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In this paper, by means of the normal family theory, we estimate the growth order of meromorphic solutions of some algebraic differential equations and improve the related result of Barsegian et al. [6]. We also give some examples to show that our results occur in some special cases. 相似文献
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广义泛函微分方程解的稳定性 总被引:8,自引:0,他引:8
本文首先给出广义泛函微分方程解的稳定性的概念,同时建立了有关稳定与不稳定的二个判据,然后作为例子,讨论二阶线性常系数广义微分差分程,得到了这类系统有关稳定与不稳定的若干结果,并发现了一些关于稳定性的分支或类似于分支的现象。 相似文献
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CONVERGENCE OF SOLUTIONS OF CERTAIN SYSTEM OF THIRD ORDER NON-LINEAR ORDINARY DIFFERENTIAL EQUATIONS
The object of this paper is to give an n-dimensional analogue of a convergence result of Tejumola [8] for some third-order differential equations. The result extends earlier results of Afuwape [1] and Ezeilo [4] to some system of third-order differential equations. 相似文献