共查询到20条相似文献,搜索用时 875 毫秒
1.
2.
In this paper, we study the growth of solutions of a first-order linear differential equation and that of a second-order linear differential equation. From this we obtain some uniqueness theorems of a nonconstant entire function and its first derivative having the same fixed points with the same multiplicities. The results in this paper also improve some known results. Some examples show that the results in this paper are best possible. 相似文献
3.
4.
The present paper deals with continuous extreme-like selections for the Vietoris hyperspace of countably compact spaces. Several new results and applications are established, along with some known results which are obtained under minimal hypotheses. The paper contains also a number of examples clarifying the role of countable compactness. 相似文献
5.
该文利用锥的性质和单调迭代技巧讨论了u0 - 凹算子正不动点的存在唯一性,所得结论改进并推广了已有的相关结果. 作为应用, 该文研究了一类Hammerstein积分方程正解的存在唯一性. 相似文献
6.
M. Durea 《Nonlinear Analysis: Theory, Methods & Applications》2010,72(2):571-579
The aim of this paper is to obtain some openness results in terms of normal coderivative for parametric set-valued mappings acting between infinite dimensional spaces. Then, implicit multifunction results are obtained by simply specializing the openness results. Moreover, we study a kind of metric regularity of the implicit multifunction. The results of the paper generalize several recent results in literature. 相似文献
7.
研究一类具有时滞和阶段结构的捕食系统.利用微分方程的比较原理和通过构造适当的Lyaponov泛函,得到保证此系统持久性和全局吸引性的充分条件.最后举例说明结论的可行性并且讨论了所得结果的生态意义. 相似文献
8.
We consider the problem of simultaneously selecting customers to be served by external carriers and routing a heterogeneous internal fleet. Very little attention was devoted to this problem. A recent paper proposed a heuristic solution procedure. Our paper shows that better results can be obtained by a simple method and corrects some erroneous results presented in the previous paper. 相似文献
9.
随着信息技术的进步和发展,现代生物学越来越多地将这些技术用于大规模生物数据的收集、分析、挖掘等过程.大量计算机技术,特别是统计方法被用来进行复杂疾病的分析.大量研究表明,人体的许多表型性状差异以及对药物和疾病的易感性等都可能与某些位点相关联,或和包含有多个位点的基因相关联.因此,定位与性状或疾病相关联的位点在染色体或基因中的位置,能帮助研究人员了解性状和一些疾病的遗传机理,也能使人们对致病位点加以干预,防止一些遗传病的发生.利用随机森林方法、Bootstrap重抽样、logistic回归等大数据分析方法,意在解决优化生物学位点关联性分析中单一致病位点识别、多位点相互作用和多性状位点关联性分析等子问题. 相似文献
10.
VariationalInequalityandComplementarityProblemforSet-ValuedMappingwithApplication¥ZhangCongjun(DepartmentofMathematics,Huaibe... 相似文献
11.
Fanky极大极小不等式的进一步推广及对变分不等式的应用 总被引:2,自引:0,他引:2
本文引出广义KKM映象的概念,其包含著名的KKM映象为特例.借助于这一映象,我们给出著名的KKM定理和Fan Ky极大极小不等式以一种新的推广形式.作为应用,我们考虑了变分不等式解的存在性问题.本文结果是引文[1~6]中相应结果的改进和发展. 相似文献
12.
In this paper, we study the growth of solutions of a first order linear differential equation. From this we verify that a
conjecture given by Brück is true under the restriction of the hyper order less than 1/2, and obtain some uniqueness theorems
of a nonconstant entire function and its first derivative sharing a nonzero constant CM. The results in this paper also improve
some known results. Some examples show that the results in this paper are best possible.
Project supported by the NSFC (NO. A0324617) and the RFDP (NO. 20060422049).
Received: 20 April 2006 Revised: 4 February 2007 相似文献
13.
In this short paper, we examine the problem of scheduling malleable tasks on parallel processors. One of the main aims of the paper is to present a simple complexity interpretation for a number of results for cases with convex and concave processing speed functions. The contribution of this paper is a new unified view of results described in several recent papers. We briefly discuss the implications of our observations on this important family of scheduling problems. 相似文献
14.
Wang Dacheng 《大学数学》1998,(2)
本文中证明了区间空间中几个新型的极大极小定理,并研究了抽象形式变分不等式和集值BHS变分不等式解的存在性问题.本文的结果包含[1,2,5,7,8]中相应结果为特例. 相似文献
15.
m-增生算子方程解的Mann和Ishikawa迭代逼近 总被引:13,自引:1,他引:12
研究了Banach 空间中具 m_ 增生算子的方程解的Mann 和Ishikawa 迭代逼近问题· 研究结果改进和发展了一些文献中的最新成果· 相似文献
16.
本文将给出偏序集零调与可缩的几个充分条件,它们包含和深化了文[1]和[2]中的一些结果,把[2]中的一些结果推广到无限偏序集的情形. 相似文献
17.
Minty’s lemma and vector variational-like inequalities 总被引:1,自引:0,他引:1
M. Chinaie T. Jabarootian M. Rezaie J. Zafarani 《Journal of Global Optimization》2008,40(1-3):463-473
In this paper, we consider two vector versions of Minty’s Lemma and obtain existence theorems for three kinds of vector variational-like
inequalities. The results presented in this paper are extension and improvement of the corresponding results of other authors.
J. Zafarani was partially supported by the Center of Excellence for Mathematics (University of Isfahan). 相似文献
18.
关于(余)反射的范畴性质及其应用 总被引:2,自引:1,他引:1
本文研究了(余)反射的范畴性质及应用,得到的主要结果如下:(1)余反射余代数范畴和反射代数范畴是等价的.(2)反射和余反射都具有可扩张性.使用这些结果可以用来推广和化简了[1—4]等人的部分工作. 相似文献
19.
本文的目的是在H-空间上得出几个截口定理、相交定理和重合定理.作为这些结果的应用,我们研究了H-空间中的极大极小不等式和变分不等式解的存在性问题.本文结果改进和发展了引文[1,3,5,6,8,9,12,14,15,17]中的相应结果. 相似文献
20.
Fuchen Zhang Kunqiong Li Guangyun Zhang Chunlai Mu 《Mathematical Methods in the Applied Sciences》2017,40(1):31-39
In this paper, the ultimate bound for a new chaotic system is derived based on stability theory of dynamical systems. The meaningful contribution of this article is that the results presented in this paper contain the existing results as special cases. Finally, numerical simulations are given to verify the effectiveness and correctness of the obtained results. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献