共查询到20条相似文献,搜索用时 15 毫秒
1.
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
2.
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
3.
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
4.
This paper discusses a kind of bent functions that have some symmetric properties about some variables. Section 2 mainly discusses the bent functions symmetric about some two variables and gives the necessary and sufficient condition for these functions. Section 3 gives algebraic expressions of some bent functions. 相似文献
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6.
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
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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
9.
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
10.
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
11.
Andrej Ule 《Acta Analytica》2004,19(33):9-30
I analyze some classical solutions of the skeptical argument and some of their week points (especially the contextualist solution).
First I have proposed some possible improvement of the contextualist solution (the introduction of the explicit-implicit belief
and knowledge distinction beside the differences in the relevance of some counter-factual alternatives). However, this solution
does not block too fast jumps of the everyday context (where empirical knowledge is possible) into skeptical context (where
empirical knowledge is impossible). Then I analyze some formal analogies between some modal arguments on the contingency of
empirical facts (and the world as whole) and the skeptical arguments against empirical knowledge. I try to show that the skeptical
conclusion “Empirical knowledge does not exist” is logically coherent with the thesis that they are empirical facts and that
we have true belief on them. In order to do that without contradictions I have to accept a non-classical definition of knowledge:
S knows that p:= S is not justified to allow that non-p. Knowledge and justified allowance function here as some pseudo-theoretical
concepts which allow only some partial and conditional definitions by some “empirical” terms and logical conditions. 相似文献
12.
A. Zafarullah 《Journal of Optimization Theory and Applications》1970,5(4):283-288
Approximate solutions of some functional equations as the best approximation of the exact solutions in some suitable spaces have been obtained and some applications given. 相似文献
13.
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
14.
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
15.
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
16.
We consider some elementary proofs of local versions of CLARKSON 's inequalities and point out the fact that these inequalities can be generalized to hold for a much wider class of parameters. In particular it is easy to generalize our interpolation proof in various ways to higher dimensions. We point out explicitely some examples of such generalizations and we also prove some corresponding global versions. In this elementary way we obtain both new proofs of some previous results of this kind and also some new complements, unifications and further generalizations of these results. 相似文献
17.
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
18.
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
19.
We use some interpolation operators and some Bernstein type operators for construction of surfaces which satisfy some given conditions. 相似文献
20.
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