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一类整函数的亏函数 总被引:1,自引:0,他引:1
李庆忠 《纯粹数学与应用数学》1991,7(2):13-16
1964年,庄圻泰教授在整函数的情况彻底解决了R.Nevanlinna提出的关于第二基本定理的推广问题,从而为亏函数的研究开创了道路。在文[2]中,我们用庄圻泰引进的Wronskin行列式作为工具解决了F.Nevanlinna猜想的广泛形式。本文继续用这一工具从推广文[3]中定理2出发,继而给出了一类整函数的亏函数个数。最后对庄圻泰提出的一个问题给出了肯定的回答。 相似文献
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本文研究了Smarandache函数与伪Smarandache函数的相关性质,主要给出了伪Smarandache函数均值的一个范围,证明了Majumdar提出的四个猜想是正确的。 相似文献
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本文解决了Gross等人提出的问题在亚纯函数时的相应情形,证明了任何一个亚纯函数都可表示为两个素亚纯函数的乘积。 相似文献
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广义部分Bent函数和广义Bent函数的关系 总被引:5,自引:0,他引:5
Bent函数是一类特殊的布尔函数,因其非线性性和稳定性在密码学和通信等领域有很重要的应用,但它们数量少,不平衡且无相关免疫性,为了弥补Bent函数的不足,Claud Carlet提出了部分Bent函数的概念,部分Bent函数是包含Bent函数的更大的函数类,后来,人们又将这两种函数概念先后都拓广到了环zm^n(m为正整数)上,分别被称为zm^n上的广义Bent函数和广义部分Bent函数,本文利用zp^n(p为素数)上广义部分Bent函数的Chrestenson循环谱特征讨论了zp^n上的广义部分Bent函数和广义Bent函数之间的关系,给出了这两种函数之间的函数关系式和谱值关系式。 相似文献
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0前言正弦函数与余弦函数是大家常用的三角函数,它们还有一对“孪生”函数就是双曲正弦函数与双曲余弦函数,依次定义如下:其中常数e=2.7182818…,双曲函数在近代科学技术上有着广泛的应用.并且这两类“孪生”通数具有许多相似之处.最近笔者[1]对于正弦函数与余弦函数加以推广,本文继续探讨双曲正弦函数与双曲余弦函数的推广,即三维线性空间存在三个线性无关的函数组具有双曲正弦函数与双曲余弦函数的类似性质.1双曲函数推广关于双曲函数推广的问题,国外很早引起重视,但没有能够深入.Pipes[2.3]提出的定义,不仅是抽象的,还存… 相似文献
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本文考虑了整函数的唯一性,将Nevanlinna整函数的唯一性定理中的判别常数首次地全部推广到亚纯函数上。 相似文献
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是否可以将第二基本定理的一般形式中常数替换为小函数,这一直是人们试图解决的重大问题.该文研究了涉及小函数的第二基本定理的推广问题, 并利用主要结果得到了几个惟一性定理, 改进了张庆德, Toda N和姚卫红等人的有关定理. 相似文献
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On a smooth, non-compact, complete, boundaryless, connected Riemannian manifold there are two kinds of functions: Busemann functions with respect to rays and barrier functions with respect to lines (if there exists at least one). In this paper we collect some known properties on Busemann functions and introduce some new fundamental properties on barrier functions. Based on these properties of barrier functions, we could define some relations on the set of lines and thus classify them. With the equivalence relation we introduced, we present a generalization of a rigidity conjecture. 相似文献
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Subvexormal functions and subinvexormal functions are proposed, whose properties are shared commonly by most generalized convex functions and most generalized invex functions, respectively. A necessary and sufficient condition for a subvexormal function to be subinvexormal is given in the locally Lipschitz and regular case. Furthermore, subvex functions and subinvex functions are introduced. It is proved that the class of strictly subvex functions is equivalent to that of functions whose local minima are global and that, in the locally Lipschitz and regular case, both strongly subvex functions and strongly subinvex functions can be characterized as functions whose relatively stationary points (slight extension of stationary points) are global minima. 相似文献
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Equilibrium problems play a central role in the study of complex and competitive systems. Many variational formulations of these problems have been presented in these years. So, variational inequalities are very useful tools for the study of equilibrium solutions and their stability. More recently a dynamical model of equilibrium problems based on projection operators was proposed. It is designated as globally projected dynamical system (GPDS). The equilibrium points of this system are the solutions to the associated variational inequality (VI) problem. A very popular approach for finding solution of these VI and for studying its stability consists in introducing the so-called "gap-functions", while stability analysis of an equilibrium point of dynamical systems can be made by means of Lyapunov functions. In this paper we show strict relationships between gap functions and Lyapunov functions. 相似文献
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Michiel Hazewinkel 《Acta Appl Math》2003,75(1-3):55-83
This paper is concerned with two generalizations of the Hopf algebra of symmetric functions that have more or less recently appeared. The Hopf algebra of noncommutative symmetric functions and its dual, the Hopf algebra of quasisymmetric functions. The focus is on the incredibly rich structure of the Hopf algebra of symmetric functions and the question of which structures and properties have good analogues for the noncommutative symmetric functions and/or the quasisymmetric functions. This paper attempts to survey the ongoing investigations in this topic as dictated by the knowledge and interests of its author. There are many open questions that are discussed. 相似文献
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与例外函数和分担函数相关的亚纯函数的正规族 总被引:1,自引:1,他引:0
设F为区域D内的一族亚纯函数,对于每个f∈F,f的所有极点重数至少是2,a(z)和b(z)为两个在D内满足a(z)■b(z)的全纯函数.若对于每个f∈F,f(z)≠a(z)和f(z)≠b(z),则F在D内正规.这个结果改进了经典的Montel定则.此外,我们也讨论了亚纯函数族中每个函数与其导函数分担两个全纯函数的正规性. 相似文献
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Maximally Nonlinear Functions and Bent Functions 总被引:1,自引:0,他引:1
Qing Xiang 《Designs, Codes and Cryptography》1999,17(1-3):211-218
We give a construction of bent functions in 2n variables, here n is odd, by using maximally nonlinear functions on GF(2
n
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A. Yu. Orlov 《Theoretical and Mathematical Physics》2006,146(2):183-206
It is known that resonant multisoliton solutions depend on higher times and a set of parameters (integrals of motion). We
show that soliton tau functions of the Toda lattice (and of the multicomponent Toda lattice) are tau functions of a dual hierarchy,
where the higher times and the parameters (integrals of motion) exchange roles. The multisoliton solutions turn out to be
rational solutions of the dual hierarchy, and the infinite-soliton tau functions turn out to be hypergeometric-type tau functions
of the dual hierarchy. The variables in the dual hierarchies exchange roles. Soliton momenta are related to the Frobenius
coordinates of partitions in the decomposition of rational solutions with respect to Schur functions. As an example, we consider
partition functions of matrix models: their perturbation series is, on one hand, a hypergeometric tau function and, on the
other hand, can be interpreted as an infinite-soliton solution.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 146, No. 2, pp. 222–250, February, 2006. 相似文献