关于亚纯函数与其导函数分担小函数的一些结果

研究了亚纯函数与其导函数权分担一个小函数的唯一性问题,所得到的定理改进与推广了张继龙、杨连中(2007,2009),Li J D(2015)的结果,并回答了K.W.Yu(2003)提出的问题.     

一个无参数的填充函数算法

自从1990年Ge R.P.教授在文章【A Filled Function Method for Finding a Global Minimizer of a Function of Several Variables[J].Math.Programming,1990,46:191-204】中提出了求全局最优化的填充函数算法以来,此类算法的有效性一直受到调整参数的困扰,在上述文章最后他也期待出现无参数的填充函数.作为一种尝试,本文提出了一种新的无参数的填充函数,并在此基础上,构造出一个无参数填充函数算法.数值试验证明该算法是有效的,同时与已有的填充函数算法比较具有计算量小的优势.     

相关免疫函数的结构与构造

一、引言 在流密码学中,人们通常采用一个线性移位寄存器或多个线性移位寄存器再加一个滤波函数来作为流密钥序列生成器。非线性滤波函数的作用是为了提高流密钥序列的线性复杂度。Siegenthaler指出:如果滤波函数选择不当,破译者在仅知密文的情况下可以使用相关攻击的方法来攻击该体制。为了抵抗相关攻击的方法,Siegenthaler提出了相关免疫函数的概念,并给出开关函数是相关免疫函数的必要条件。肖国镇和J.L.     

随机变量函数的矩估计不等式

Literature[1] obtained an upper bound inequality for the variance of a function of a standard normal random variable,using Hermite polynomials.In this paper we extend and improve the result of [1] and obtain an upper bound inequality for the rth absolute moment of a function of a random variable and an upper bound for the variance of a random variable function is also given.     

分担一个亚纯函数的亚纯函数族的正规定则

Let F be a family of meromorphic functions in D,and let Ψ(≠0) be a meromorphic function in D all of whose poles are simple.Suppose that,for each f ∈F,f≠0 in D.If for each pair of functions {f,g}(?) F,f' and g' share Ψ in D,then F is normal in D.     

一类整函数的非正规点集

1.引言设f(z)为一超越整函数,考虑由这个函数经过逐次迭代所得到的函数:这个函数序列构成一个函数族。我们记J(f)为这个函数族的非正规点集。这个点集与f的各阶不动点有密切关系,因而引起了关于这个点集的一些研究工作。在这方面,     

BMO亚纯函数,Normal函数和Carleson测度

In this paper, we introduce H_N measure and H_B measure . A criterion for N (f∈B) is obtained in terms of the H_N measure (H_B measure) . We also study Carleson measure and BMOM . Several equivalent conditions for a function to be in BMOM or VMOM are proved .     

$L^p$函数的分布函数在端点处的极限性质

We consider the limiting property of the distribution function of L~p function at endpoints 0 and ∞ and prove that for λ 0 the following two equations limλ→+∞λ~pm({x : |f(x)| λ}) = 0, limλ→0+λ~pm({x : |f(x)| λ}) = 0hold for f ∈ L~p(Rn) with 1 ≤ p ∞. This result is naturally applied to many operators of type(p, q) as well.     

Salagean算子定义的双单叶函数子类的系数估计

In this paper, a new subclass N_Σ~(h,p)(m, λ, μ) of analytic and bi-univalent functions in the open unit disk U is defined by salagean operator. We obtain coefficients bounds |a_2| and |a_3| for functions of the class. Moreover, we verify Brannan and Clunie's conjecture |a_2| ≤2~(1/2)for some of our classes. The results in this paper extend many results recently researched by many authors.     

EXTENSION OF SMOOTHING FUNCTIONS TO SYMMETRIC CONE COMPLEMENTARITY PROBLEMS

The paper uses Euclidean Jordan algebras as a basic tool to extend smoothing functions, which include the Chen-Mangasarian class and the Fischer-Burmeister smoothing functions, to symmetric cone complementarity problems. Computable formulas for these functions and their Jacobians are derived. In addition, it is shown that these functions are Lipschitz continuous with respect to parameter # and continuously differentiable on J × J for any μ 〉 0.     

Value sharing results for shifts of meromorphic functions

In this paper, we deal with the value distribution of difference products of entire functions, and present some result on two difference products of entire functions sharing one value with the same multiplicities. The research findings also include an analogue for shift of a well-known conjecture by Brück. Our theorems improve the results of I. Laine and C.C. Yang [I. Laine, C.C. Yang, Value distribution of difference polynomials, Proc. Japan Acad. Ser. A Math. Sci. 83 (2007) 148-151], K. Liu and L.Z. Yang [K. Liu, L.Z. Yang, Value distribution of the difference operator, Arch. Math. 92 (2009) 270-278], and J. Heittokangas et al. [J. Heittokangas, R. Korhonen, I. Laine, J. Rieppo, J.L. Zhang, Value sharing results for shifts of meromorphic function, and sufficient conditions for periodicity, J. Math. Anal. Appl. 355 (2009) 352-363]. Moreover, we show by illustrating a number of examples that our results are best possible in certain senses.     

亚纯函数涉及小函数的奇异方向

本文研究了平面上亚纯函数的奇异方向.利用角域内Ahlfors-Shimize特征函数和几个已有的关于函数增长性估计的引理,证明了复平面上的零级超越亚纯函数存在一条涉及小函数的T方向.推广了吴昭君和孙道椿给出的结果.     

Subclasses of meromorphic functions associated with the Cho-Kwon-Srivastava operator

We consider a multiplier transformation and some subclasses of the class of meromorphic functions which was defined by means of the Hadamard product by N.E. Cho, O.S. Kwon and H.M. Srivastava in [N.E. Cho, O.S. Kwon, H.M. Srivastava, Inclusion and argument properties for certain subclasses of meromorphic functions associated with a family of multiplier transformations, J. Math. Anal. Appl. 300 (2004) 505-520].     

亚纯函数与其差分的唯一性

研究了亚纯函数与其差分算子分担多项式的唯一性问题,证明了:设f是一个有穷级非常数亚纯函数,p(z)(■0)是一个多项式.如果f,△_cf与△_c~2f CM分担∞,p(z),则f≡△_cf或f(z)=e~(Az+B)+b,其中p(z)≡b≠0,A≠0满足e~(Ac)=1.本文结果是对Chang, Fang(Chang J M, Fang M L. Uniqueness of entire functions and fixed points [J]. Kodai Math J, 2002, 25(1):309-320.)结果的差分模拟,并且完整回答了Chen, Chen(Chen B Q, Chen Z X, Li S. Uniqueness theorems on entire functions and their difference operators or shifts [J]. Abstr Appl Anal, 2012,Art. ID 906893, 8 pp.)的问题.     

单位圆内亚纯函数的T点

In this Paper,the T points of meromorphic functions are defined and existence of the T points is showed in the Unit disk.we also prove T point must be J point.     

On a question of Gross

Using the notion of weighted sharing of sets we prove two uniqueness theorems which improve the results proved by Fang and Qiu [H. Qiu, M. Fang, A unicity theorem for meromorphic functions, Bull. Malaysian Math. Sci. Soc. 25 (2002) 31-38], Lahiri and Banerjee [I. Lahiri, A. Banerjee, Uniqueness of meromorphic functions with deficient poles, Kyungpook Math. J. 44 (2004) 575-584] and Yi and Lin [H.X. Yi, W.C. Lin, Uniqueness theorems concerning a question of Gross, Proc. Japan Acad. Ser. A 80 (2004) 136-140] and thus provide an answer to the question of Gross [F. Gross, Factorization of meromorphic functions and some open problems, in: Proc. Conf. Univ. Kentucky, Lexington, KY, 1976, in: Lecture Notes in Math., vol. 599, Springer, Berlin, 1977, pp. 51-69], under a weaker hypothesis.     

The uniqueness of meromorphic functions concerning small functions

We prove that the Nevanlinna five-point-theorem on the uniqueness of meromorphic functions is valid for five small meromorphic functions.     

代数体函数第二基本定理的推广

把代数体函数第二基本定理推广到了p个次数不超过d的多项式的情形,得到了类似于亚纯函数理论中Dufresnoy J推出的结果.     

Meromorphic functions sharing values in an angular domain

In this paper we study the problems of meromorphic functions sharing values in an angular domain and obtain some uniqueness results which are the improvement of the well-known five-value theorem and four-value theorem given by Nevanlinna.     

关于函数方程f（z^k）=q（f（z））（k≥3）亚纯解的讨论

给出了函数方程f(z^k)=q(f(z))存在有例外值亚纯解的充要条件及解的一般形式。这里q(z)为给定的k次有理函数。