Theta Subgroups and the Solvability of FiniteGroups

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎａｎｄＤｅｆｉｎｉｔｉｏｎＡｌｌｇｒｏｕｐｓｔｒｅａｔｅｄａｒｅｆｉｎｉｔｅ．Ｉｎ［１］，Ｎ．Ｐ．ＭｕｋｈｅｒｊｅｅａｎｄＰ．Ｂｈａｔｔａｃｈａｒｙａｄｅｆｉｎｅｄｔｈｅｃｏｎｃｅｐｔｏｆθ－ｐａｉｒｓａｓｓｏｃｉａｔｅｄｔｏａｍａｘｉｍａｌｓｕｂｇｒｏｕｐＭｏｆａｇｒｏｕｐＧａｓｆｏｌｌｏｗｓ：ａθ－ｐａｉｒｆｏｒＭｉｓａｎｙｐａｉｒｏｆｓｕｂｇｒｏｕｐｓ（Ｃ，Ｄ）ｏｆＧｓｕｃｈｔｈａｔ（１）ＤＧ，Ｄ＜Ｃ，（２）〈Ｍ，Ｃ〉＝Ｇ，〈Ｍ，Ｄ〉＝Ｍａｎｄ（３）Ｃ／Ｄ…     

On Torsion Theories of Regulars and V—Rings

ＬｅｔＲｂｅａｃｏｍｍｕｔａｔｉｖｅｒｉｎｇｗｉｔｈｉｄｅｎｔｉｔｙ，τｂｅａｈｅｒｅｄｉｔａｒｙｔｏｒｓｉｏｎｔｈｅｏｒｙｏｎＲ－ｍｏｄ．Ｔｈｅｃｏｎｃｅｐｔｉｏｎｓｗｈｉｃｈｗｅｈａｖｅｕｓｅｄｉｎｔｈｅｐａｐｅｒｃａｎｂｅｓｅｅｎｉｎ［１］．Ｄｅｆｉｎｉｔｉｏｎ１　ＴｈｅｒｉｎｇＲｉｓτυ－ｒｉｎｇｉｆｅｖｅｒｙｓｉｍｐｌｅｍｏｄｕｌｅｉｓτ－ｉｒｊｅｃｔｉｖｅ，ｔｈｅｒｉｎｇＲｉｓτ－ｒｅｇｕｌａｒｒｉｎｇｉｆｅｖｅｒｙＲ－ｍｏｄｕｌｅｉｓτ－ｆｌａｔ．Ｚｈａｎｇ［２］ｓｔｕｄｉｅｄτυ…     

Minimum Ellipsiod and Optim alDesign

§０．　ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｅｐａｐｅｒ［１］，ＫｉｅｆｅｒａｎｄＷｏｌｆｏｗｉｔｚｓｏｌｖｅｄｔｈｅｅｑｕｉｖａｌｅｎｃｅｏｆＧ－ｏｐｔｉｍａｌｄｅｓｉｇｎａｎｄＤ－ｏｐｔｉｍａｌｄｅｓｉｇｎ．Ｉｎｔｈｅｐａｐｅｒ［２］，ＫａｉｌｉｎａｎｄＳｔｕｄｄｅｎｓｔｕｄｉｅｄｔｈｅａｌｇｅｂｒａｉｃｓｔｒｕｃｔｕｏｅｏｆｃｏｎｃｅｓ－ｓｉｏｎａｌｄｅｓｉｇｎ，Ｄ－ｏｐｔｉｍａｌａｎｄＣ－ｏｐｔｉｍａｌｄｅｓｉｇｎ．Ｉｎｔｈｅｐａｐｅｒ［３］，ＳｐｒｕｉｌｌｓｔｕｄｉｅｄｔｈｅＣ－ｏｐｔｉｍ…     

A CLASS OF FDE WITH DEVIATING ARGUMENT WHICH DEPENDS ON STATE AND RATE OF CHANGE OF THE STATE

ＦｏｒｔｈｅＮｏｎ－Ｒ．Ｎ．Ａ．ＦＤＥ，ｔｈｅｒｅａｒｅｗｉｄｅａｐｐｌｉｃａｔｉｏｎｓ［１］．Ｔｈｅｓｅｅｑｕａｔｉｏｎｓｓｈｏｗａｎｉｍｐａｒｔａｎｔｃｈａｒａｃｔｅｒ，ｗｈｉｃｈｂｏｔｈｐｏｓｉｔｉｖｅａｎｄｎｅｇａｔｉｖｅｄｅｌａｙａｃｔａｓ...     

Quasi—uniformities on Lattice Implication Algebras

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｏｒｄｅｒｔｏｒｅｓｅａｒｃｈｔｈｅｌｏｇｉｃａｌｓｙｓｔｅｍｗｈｏｓｅｐｒｏｐｏｓｉｔｉｏｎａｌｖａｌｕｅｉｓｇｉｖｅｎｉｎａｌａｔｔｉｃｅ，ＸｕＹ．［Ｘｕ２］ｐｒｏｐｏｓｅｄｔｈｅｃｏｎｃｅｐｔｏｆｌａｔｔｉｃｅｉｍｐｌｉｃａｔｉｏｎａｌｇｅｂｒａａｎｄｄｉｓｃｕｓｓｅｄｉｔｓｓｏｍｅｐｒｏｐｅｒ－ｔｉｅｓｉｎ［Ｘｕ１］ａｎｄ［Ｘｕ２］．Ａｌｓｏ，ｉｎ［ＸＱ１］，ＸｕＹ．ｔｏｇｅｔｈｅｒｗｉｔｈＫ．Ｙ．Ｑｉｎｄｉｓｃｕｓｓｅｄｔｈｅｐｒｏｐ－ｅｒｔｉｅｓｏ…     

On the Structure of the B—cocleft Module Coalgebra

§１．　ＴｈｅＥｑｕｉｖａｌｅｎｔＴｈｅｏｒｅｍｏｆｔｈｅＣｒｏｓｓｅｄＣｏｐｒｏｄｕｃｔＬｅｔＣｂｅａｌｅｆｔＨ－ｗｅａｋｌｙｃｏｍｏｄｕｌｅｃｏａｌｇｅｂｒａ［４］ｗｉｔｈｔｈｅｓｔｒｕｃｔｕｒｅρ－Ｃ（ｃ）＝∑ｃ（１）ｃ（２）．ＤｂｅｌｅｆｔＨ－ｍｏｄｕｌｅｃｏａｌｇｅｂｒａ［２］ｗｉｔｈｔｈｅｓｔｒｕｃｔｕｒｅ“”．Ｆｏｒα∈Ｈｏｍκ（Ｃ，ＨＨ）ｄｅｎｏｔｅα（ｃ）＝∑α１（ｃ）α２（ｃ）．Ｄｅｆｉｎｅ△－：ＣＤ→（ＣＤ）（ＣＤ）ａｎｄε－：ＣＤ→κａｓｆｏｌｌｏｗ－ｉ…     

A New Class of Generalized Landau Linear Positive Operator Sequence and Its Properties of Approximation

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＩｎ１９０８，Ｅ．Ｌａｎｄａｕｉｎｔｒｏｄｕｃｅｄｔｈｅｆｏｌｌｏｗｉｎｇｗｅｌｌｋｎｏｗｎｓｅｑｕｅｎｃｅｏｆｏｐｅｒａｔｏｒｓ［１］Ｌｎ［ｆ（ｔ）；ｘ］＝Ｋｎ∫１－１ｆ（ｔ）［１－（ｔ－ｘ）２］ｎｄｔ，　　　　（１．１）ｗｈｅｒｅ　　　　　Ｋｎ＝［∫１｛－１（１－ｔ２）ｎｄｔ］－１～ｎπ　　（ｎ→∞）．（１．１）ｗａｓｕｓｅｄｉｎｔｈｅｐｒｏｏｆｏｆｔｈｅＷｅｉｅｒｓｔｒａｓｓＴｈｅｏｒｅｍ．Ｓｉｎｃｅｔｈｅｎ，ｔｈｅａｐｐｒｏｘｉｍａｔｉｏｎｐｒｏｐ－ｅｒｔ…     

Characterizations of Stable Functions on L—domains

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｐｕｒｐｏｓｅｏｆＤｏｍａｉｎｓｔｈｅｏｒｙ（ｉｎｔｒｏｄｕｃｅｄｂｙＤ．Ｓｃｏｔｔ）ｉｓｔｏｍｏｄｅｌｔｈｅｄｅｎｏｔａｔｉｏｎａｌｓｅ－ｍａｎｔｉｃｓｏｆｃｏｍｐｕｔｅｒｐｒｏｇｒａｍｍｏｎｇｌａｎｇｕａｇｅｓ［１］．Ａｎｉｍｐｏｒｔａｎｔｆｒａｍｅ－ｗｏｒｋｆｏｒｔｈｅｄｅｎｏｔａ－ｔｉｏｎａｌｓｅｍａｎｔｉｃｓｏｆｐｒｏｇｒａｍｍｉｎｇｌａｎｇｕａｇｅｓｉｓｔｈｅｃａｔｅｇｏｒｙｏｆＬ－ｄｏｍａｉｎｓｗｉｔｈｓｔａｂｌｅｆｕｎｃｔｉｏｎｓ．Ｌ－ｄｏｍ…     

Riccati微分方程的可积条件

Ｉｎ１９９８,ＺｈａｏＬｉｎｌｏｎｇ［１］ｏｂｔａｉｎｅｄｔｈｅｉｎｔｅｇｒａｂｌｅｃｏｎｄｉｔｉｏｎ：Ｒ＝１αγＰｅ２∫（Ｑ－βＤ）ｄｘ　　　（α,β,γｉｓｃｏｎｓｔ）．（１）ＦｏｒＲｉｃｃａｔｉｅｑｕａｔｉｏｎ：ｙ′＝ｐ（ｘ）ｙ２＋Ｑ（ｘ）ｙ＋Ｒ（ｘ）　　（ＰＲ≠０）．（２）　　Ｈｅｒｅｔｈｅｎｅｗｉｎｔｅｇｒａｂｌｅｃｏｎｄｉｔｉｏｎｓｉｓｇｉｖｅｎ：Ｌ［ｙ０］＝１αγＰｅ２∫（Ｑ＋２ｙ０ｐ－βＤ）ｄｘ．（３）Ｌ［ＡＢ＋ｙ０］＝１αγ（ＡＢ）２Ｌ［ｙ０］ｅ２∫（２ＢＡＬ［ｙ０］＋Ｑ＋２ｙ…     

On Minkowski Constant of Function Fields

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＬｅｔＫｂｅａｎａｌｇｅｂｒａｉｃｎｕｍｂｅｒｆｉｅｌｄｗｉｔｈｄｅｇｒｅｅｎ＝［Ｋ：Ｑ］,ＯＫａｎｄＤＫｔｈｅｒｉｎｇｏｆｉｎ－ｔｅｇｅｒｓａｎｄｔｈｅｄｉｓｃｒｉｍｉｎａｎｔｏｆＫｒｅｓｐｅｃｔｉｖｅｌｙ,ｒ２ｔｈｅ...     

关于一个奇异Dirichlet问题的注记

The Dirichlet problem to a second order differential equation with some singularities is studied. Some existence results are established to the problem which generalize some results recently obtained by D. O‘Regan by eliminating some superfluous constrains to the problem. Also, some new results have been proven which may provide more useful information for the study of the problem.     

关于算子方程Nχ=δLχ解的若干研究

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.     

Local estimates for eigenvector-like centralities of complex networks

We will analyze several centrality measures by giving a general framework that includes the Bonacich centrality, PageRank centrality or in-degree vector, among others. We will get some local scale estimators for such global measures by giving some geometrical characterizations and some deviation results that help to quantify the error of approximating a spectral centrality by a local estimator.     

灰色离散系统稳定及不稳定的代数判据

本文通过作者提出的区间矩阵离散稳定性的概念,结合矩阵理论的方法,给出了灰色离散线性系统稳定性及不稳定性的一些实用代数判据.另外,本文还给出了区间矩阵稳定的几个简洁判据.最后给出了应用实例.     

ECO:a methodology for the enumeration of combinatorial objects

In this Paper, we illustrate a method (called the ECO method) for enumerating some classes of combinatorial objects. The basic idea of this method is the following: by means of an operator that performs a "local expansion" on the objects, we give some recursive constructions of these classes. We use these constructions to deduce some new funtional equations verified by classes' generating functions. By solving the functional equations, we enumerate the combinatorial objects according to various parameters. We show some applications of the method referring to some classical combinatorial objects, such as: trees, paths, polyminoes and permutations     

Some characterizations of unique extremality

In this paper, it is shown that some necessary characteristic conditions for unique extremality obtained by Zhu and Chen are also sufficient and some sufficient ones by them actually imply that the uniquely extremal Beltrami differentials have a constant modulus. In addition, some local properties of uniquely extremal Beltrami differentials are given.     

Linear codes with few weights from weakly regular plateaued functions

Linear codes with few nonzero weights have wide applications in secret sharing, authentication codes, association schemes and strongly regular graphs. Recently, Wu et al. (2020) obtained some few-weighted linear codes by employing bent functions. In this paper, inspired by Wu et al. and some pioneers' ideas, we use a kind of functions, namely, general weakly regular plateaued functions, to define the defining sets of linear codes. Then, by utilizing some cyclotomic techniques, we construct some linear codes with few weights and obtain their weight distributions. Notably, some of the obtained codes are almost optimal with respect to the Griesmer bound. Finally, we observe that our newly constructed codes are minimal for almost all cases.     

Product of some elements of finite groups

In this paper, some sufficient and necessary conditions for the commutative product of two elements of finite groups are given. Moreover, some results are obtained by investigating the product of some elements.     

SOME DOUBLE SEQUENCE SPACES OF FUZZY NUMBERS DEFINED BY ORLICZ FUNCTIONS

In this article, we introduce some double sequence spaces of fuzzy real numbers defined by Orlicz function, study some of their properties like solidness, symmetricity, completeness etc, and prove some inclusion results.     

条件仿积算子的有界性及其应用

研究了条件仿积算子在部分鞅空间上的有界性.利用鞅的分解得出了一些条件仿积算子的强型和弱型不等式,并给出了部分不等式在条件均方算子上的应用.