共查询到20条相似文献,搜索用时 156 毫秒
1.
Khalid H. Al-Shaalan 《印度理论与应用数学杂志》2017,48(2):259-269
In this paper we prove some theorems of commutativity for near-rings with generalized derivations. As a consequence of the results obtained, we generalize some published results. Also, we give some examples to show that some conditions in some results obtained are not redundant. 相似文献
2.
利用多重拓扑度的性质以及一些不等式研究了零指标的Predholm算子和L-全连续算子方程Nχ=δχ的解,获得若干新的结果,推广了一些重要结论,并将结果应用到一类二阶微分方程的边值问题中. 相似文献
3.
E. Yang 《Acta Mathematica Hungarica》2007,116(3):265-271
We investigate the interrelations of some families of weak forms of open sets and point out that some of them are the same.
Also, we make comparisons of some weak forms of continuity and give decompositions of some of them. 相似文献
4.
《Mathematical and Computer Modelling》1994,19(11):53-66
In this paper, I derive some first passage probability distributions for some continuous time Markov chains. By using these results, I then derive some exact HIV incubation distributions under treatment by anti-viral drugs such as AZT under some general conditions. It is shown that under some special conditions, these distributions are mixtures of generalized Gamma distributions. 相似文献
5.
6.
In this article, we investigate some operator-norm inequalities related to some conjectures posed by Hayajneh and Kittaneh that are related to questions of Bourin regarding a special type of inequalities referred to as subadditivity inequalities. While some inequalities are meant to answer these conjectures, other inequalities present reverse-type inequalities for these conjectures. Then, we present some new trace inequalities related to Heinz means inequality and use these inequalities to prove some variants of the aforementioned conjectures. 相似文献
7.
研究了限制李三系的半单元的一些重要性质,给出了若干个限制李三系是可换的条件,得到了限制李三系的有环面元基的几个条件,刻划了限制李三系的Frattini p-子系的一些性质.同时,研究了中心为零的所有元素是半单元的限制李三系的一些重要性质. 相似文献
8.
J—自共轭微分算子谱的定性分析 总被引:6,自引:0,他引:6
本文对J-自共轭微分算子谱理论研究情况做一些概要性的介绍,第一部分简要回顾了J-自共轭微分算子理论研究的发展过程,第二,三部分介绍了J-自共轭微分算子的本质谱和离散谱定性分析的主要方法和结论;第四部分扼要叙述J-自共轭微分算子其它方面的一些工作,以及J-自共轭微分算子谱理论研究中尚待解决的问题。 相似文献
9.
10.
Yue WANG 《数学物理学报(B辑英文版)》2017,37(3):732-751
Using Nevanlinna theory of the value distribution of meromorphic functions, we investigate the problem of the existence of meromorphic solutions of some types of complex differential-difference equations and some properties of meromorphic solutions, and we obtain some results, which are the improvements and extensions of some results in references. Examples show that our results are precise. 相似文献
11.
讨论了高阶变系数泛函微分方程解的振动性,并给出了这类高阶变系数函数方程解的若干新振动准则.结果推广了目前已有的某些结果.并且给出了在差分方程中的应用. 相似文献
12.
Yong Wang 《中国科学 数学(英文版)》2010,53(7):1685-1696
For even-dimensional manifolds, we prove some twisted anomaly cancellation formulas which generalize some well-known cancellation formulas. For odd dimensional manifolds, we obtain some modularly invariant characteristic forms by the Chern-Simons transgression and we also get some twisted anomaly cancellation formulas. 相似文献
13.
BIFURCATION IN PRESCRIBED MEAN CURVATURE PROBLEM 总被引:1,自引:0,他引:1
马力 《数学物理学报(B辑英文版)》2002,22(4)
This paper discusses the existence problem in the study of some partial dif-ferential equations. The author gets some bifurcation on the prescribed mean curvature problem on the unit ball, the scalar curvature problem on the n-sphere, and some field equations. The author gives some natural conditions such that the standard bifurcation or Thorn-Mather theory can be used. 相似文献
14.
关于凸曲面的几个定义的关系 总被引:1,自引:0,他引:1
本文讨论了凸曲面的几种定义及其关系,发现有的定义是局部凸的定义,有的是整体凸的定义,有的则对于局部凸和整体凸都适合,最后给出了各种定义之间互推的证明,对于局部凸和整体凸定义之间不能推证的,则说明了原因. 相似文献
15.
Yonghong Yao Haiyun Zhou Yeong-Cheng Liou 《Journal of Applied Mathematics and Computing》2008,28(1-2):39-49
In this paper, we suggest and analyze some new iterative algorithms with variable anchors for non-expansive mapping in Banach spaces. We prove that the proposed iterative algorithms converge strongly to a fixed point of some non-expansive mapping. We also obtain some corollaries which include some results as special cases. Furthermore, we conclude the strong convergence of the so-called viscosity iterative algorithms. 相似文献
16.
We study some semilinear elliptic equations with singular coefficients which relate to some Hardy–Sobolev inequalities. We obtain some existence results for these equations and give a theorem for prescribing the Palais–Smale sequence for these equations. Moreover, we find some interesting connections between these equations and some semilinear elliptic equations in hyperbolic space. Using these connections, we obtain many new results for these equations. 相似文献
17.
On linear spaces and matroids of arbitrary cardinality 总被引:6,自引:0,他引:6
In this paper, we study linear spaces of arbitrary finite dimension on some
(possibly infinite) set. We interpret linear spaces as simple matroids and study the problem
of erecting some linear space of dimension n to some linear
space of dimension n + 1 if
possible. Several examples of some such erections are studied; in particular, one of these
erections is computed within some infinite iteration process.Dedicated to the memory of Gian-Carlo Rota 相似文献
18.
关于更新风险模型中破产概率的若干结果 总被引:2,自引:0,他引:2
进一步研究了更新风险模型中破产概率的问题,在假定索赔额分布是重尾时,证明了若干重要结果,得到了与经典的Crammer—Lunderberg模型相一致的结论.并义推广和改进了部分已有文献中的结果。 相似文献
19.
Using Nevanlinna theory of the value distribution of meromorphic functions,we discuss some properties of the transcendental meromorphic solutions of second-order algebraic differential equations,and generalize some results of some authors. 相似文献
20.
何蓉华 《应用泛函分析学报》2011,13(2):161-167
给出了-些从仿紧拓扑空间到FC-空间的新的连续选择;也给出了-些从仿紧拓扑空间到局部FC-一致空间的新的邻近选择.这些结果改进且推广了-些近来的结论. 相似文献