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ON RIEMANN BOUNDARY VALUE PROBLEM FOR POLYANALYTIC FUNCTIONS ON THE REAL AXIS 被引量:9
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作者 汪玉峰 杜金元 《Acta Mathematica Scientia》 SCIE CSCD 2004年第4期663-671,共9页
In this article, Riemann boundary value problem with different factors for polyanalytic functions on the real axis is studied. The expression of solution and sufficient and necessary condition for solvability of the n... In this article, Riemann boundary value problem with different factors for polyanalytic functions on the real axis is studied. The expression of solution and sufficient and necessary condition for solvability of the non-homogeneous Riemann boundary value problem are obtained. 展开更多
关键词 Polyanalytic function riemann boundary value problem
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Riemann theta function periodic wave solutions for the variable-coefficient mKdV equation 被引量:1
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作者 张翼 程智龙 郝晓红 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第12期23-30,共8页
In this paper, a variable-coefficient modified Korteweg-de Vries (vc-mKdV) equation is considered. Bilinear forms are presented to explicitly construct periodic wave solutions based on a multidimensional Riemann the... In this paper, a variable-coefficient modified Korteweg-de Vries (vc-mKdV) equation is considered. Bilinear forms are presented to explicitly construct periodic wave solutions based on a multidimensional Riemann theta function, then the one and two periodic wave solutions are presented~ and it is also shown that the soliton solutions can be reduced from the periodic wave solutions. 展开更多
关键词 variable-coefficient mKdV equation riemann theta function soliton solutions periodic wave solutions
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On the Absence of Zeros of Riemann Zeta-Function Out of ℜ(z) = 1/2 被引量:1
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作者 Jorge Julián Sánchez Martínez 《Advances in Pure Mathematics》 2022年第3期178-185,共8页
This work shows, after a brief introduction to Riemann zeta function , the demonstration that all non-trivial zeros of this function lies on the so-called “critical line”,, the one Hardy demonstrated in his famous w... This work shows, after a brief introduction to Riemann zeta function , the demonstration that all non-trivial zeros of this function lies on the so-called “critical line”,, the one Hardy demonstrated in his famous work that infinite countable zeros of the above function can be found on it. Thus, out of this strip, the only remaining zeros of this function are the so-called “trivial ones” . After an analytical introduction reminding the existence of a germ from a generic zero lying in , we show through a Weierstrass-Hadamard representation approach of the above germ that non-trivial zeros out of cannot be found. 展开更多
关键词 riemann Zeta function ANALYTICITY Weierstrass-Hadamard Product REPRESENTATION
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Fast Converging Series for Riemann Zeta Function 被引量:1
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作者 Hannu Olkkonen Juuso T. Olkkonen 《Open Journal of Discrete Mathematics》 2012年第4期131-133,共3页
Riemann zeta function has a key role in number theory and in its applications. In this paper we present a new fast converging series for . Applications of the series include the computation of the and recursive comput... Riemann zeta function has a key role in number theory and in its applications. In this paper we present a new fast converging series for . Applications of the series include the computation of the and recursive computation of , and generally . We discuss on the production of irrational number sequences e.g. for encryption coding and zeta function maps for analysis and synthesis of log-time sampled signals. 展开更多
关键词 riemann ZETA function Converging SERIES NUMBER Theory CRYPTOGRAPHY Signal Processing
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RIEMANN BOUNDARY VALUE PROBLEMS FOR SOME K-REGULAR FUNCTIONS IN CLIFFORD ANALYSIS 被引量:3
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作者 姜乐 杜金元 《Acta Mathematica Scientia》 SCIE CSCD 2012年第5期2029-2049,共21页
In this paper,we study the R m(m〉0) Riemann boundary value problems for regular functions,harmonic functions and bi-harmonic functions with values in a universal clifford algebra C(Vn,n).By using Plemelj formula,... In this paper,we study the R m(m〉0) Riemann boundary value problems for regular functions,harmonic functions and bi-harmonic functions with values in a universal clifford algebra C(Vn,n).By using Plemelj formula,we get the solutions of R m(m〉0) Riemann boundary value problems for regular functions.Then transforming the Riemann boundary value problems for harmonic functions and bi-harmonic functions into the Riemann boundary value problems for regular functions,we obtain the solutions of R m(m〉0) Riemann boundary value problems for harmonic functions and bi-harmonic functions. 展开更多
关键词 riemann boundary value problem harmonic function bi-harmonic function Plemelj formula
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Common Properties of Riemann Zeta Function, Bessel Functions and Gauss Function Concerning Their Zeros 被引量:1
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作者 Alfred Wünsche 《Advances in Pure Mathematics》 2019年第3期281-316,共36页
The behavior of the zeros in finite Taylor series approximations of the Riemann Xi function (to the zeta function), of modified Bessel functions and of the Gaussian (bell) function is investigated and illustrated in t... The behavior of the zeros in finite Taylor series approximations of the Riemann Xi function (to the zeta function), of modified Bessel functions and of the Gaussian (bell) function is investigated and illustrated in the complex domain by pictures. It can be seen how the zeros in finite approximations approach to the genuine zeros in the transition to higher-order approximation and in case of the Gaussian (bell) function that they go with great uniformity to infinity in the complex plane. A limiting transition from the modified Bessel functions to a Gaussian function is discussed and represented in pictures. In an Appendix a new building stone to a full proof of the Riemann hypothesis using the Second mean-value theorem is presented. 展开更多
关键词 riemann Zeta and Xi function Modified BESSEL functions Second Mean-Value THEOREM or Gauss-Bonnet THEOREM riemann Hypothesis
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Special Values for the Riemann Zeta Function
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作者 John H. Heinbockel 《Journal of Applied Mathematics and Physics》 2021年第5期1108-1120,共13页
The purpose for this research was to investigate the Riemann zeta function at odd integer values, because there was no simple representation for these results. The research resulted in the closed form expression <i... The purpose for this research was to investigate the Riemann zeta function at odd integer values, because there was no simple representation for these results. The research resulted in the closed form expression <img src="Edit_909dc64a-717a-4477-a9f8-a3b94ab4008e.bmp" alt="" /> for representing the zeta function at the odd integer values 2<em>n</em>+1 for <em>n</em> a positive integer. The above representation shows the zeta function at odd positive integers can be represented in terms of the Euler numbers <em>E</em><sub>2<em>n</em></sub> and the polygamma functions <em>ψ</em><sup>(2<em>n</em>)</sup>(3/4). This is a new result for this study area. For completeness, this paper presents a review of selected properties of the Riemann zeta function together with how these properties are derived. This paper will summarize how to evaluate zeta (n) for all integers n different from 1. Also as a result of this research, one can obtain a closed form expression for the Dirichlet beta series evaluated at positive even integers. The results presented enable one to construct closed form expressions for the Dirichlet eta, lambda and beta series evaluated at odd and even integers. Closed form expressions for Apéry’s constant zeta (3) and Catalan’s constant beta (2) are also presented. 展开更多
关键词 riemann Zeta function Zeta (2n) Zeta (2n + 1) Apéry’s Constant Catalan Constant
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A Standard Method to Prove That the Riemann Zeta Function Equation Has No Non-Trivial Zeros
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作者 Xiaochun Mei 《Advances in Pure Mathematics》 2020年第2期86-99,共14页
A standard method is proposed to prove strictly that the Riemann Zeta function equation has no non-trivial zeros. The real part and imaginary part of the Riemann Zeta function equation are separated completely. Suppo... A standard method is proposed to prove strictly that the Riemann Zeta function equation has no non-trivial zeros. The real part and imaginary part of the Riemann Zeta function equation are separated completely. Suppose ξ(s) = ξ1(a,b) + iξ2(a,b) = 0 but ζ(s) = ζ1(a,b) + iζ2(a,b) ≠ 0 with s = a + ib at first. By comparing the real part and the imaginary part of Zeta function equation individually, a set of equation about a and b is obtained. It is proved that this equation set only has the solutions of trivial zeros. In order to obtain possible non-trivial zeros, the only way is to suppose that ζ1(a,b) = 0 and ζ2(a,b) = 0. However, by using the compassion method of infinite series, it is proved that ζ1(a,b) ≠ 0 and ζ2(a,b) ≠ 0. So the Riemann Zeta function equation has no non-trivial zeros. The Riemann hypothesis does not hold. 展开更多
关键词 riemann Hypothesis riemann ZETA function riemann ZETA function EQUATION Jacobi’s function Residue Theorem Cauchy-riemann EQUATION
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Approach to Riemann Hypothesis by Combined Commensurable Step Function Approximation with Bonnet Method
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作者 Alfred Wünsche 《Advances in Pure Mathematics》 2020年第5期201-228,共28页
To the Riemann hypothesis, we investigate first the approximation by step-wise Omega functions Ω(u) with commensurable step lengths u0 concerning their zeros in corresponding Xi functions Ξ(z). They are periodically... To the Riemann hypothesis, we investigate first the approximation by step-wise Omega functions Ω(u) with commensurable step lengths u0 concerning their zeros in corresponding Xi functions Ξ(z). They are periodically on the y-axis with period proportional to inverse step length u0. It is found that they possess additional zeros off the imaginary y-axis and additionally on this axis and vanish in the limiting case u0 → 0 in complex infinity. There remain then only the “genuine” zeros for Xi functions to continuous Omega functions which we call “analytic zeros” and which lie on the imaginary axis. After a short repetition of the Second mean-value (or Bonnet) approach to the problem and the derivation of operational identities for Trigonometric functions we give in Section 8 a proof for the position of these genuine “analytic” zeros on the imaginary axis by construction of a contradiction for the case off the imaginary axis. In Section 10, we show by a few examples that monotonically decreasing of the Omega functions is only a sufficient condition for the mentioned property of the positions of zeros on the imaginary axis but not a necessary one. 展开更多
关键词 riemann Zeta function riemann Xi function Second Mean-Value APPROACH (Bonnet Method) Chebyshev Polynomials BESSEL functions
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Accelerated Series for Riemann Zeta Function at Odd Integer Arguments
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作者 Juuso T. Olkkonen Hannu Olkkonen 《Open Journal of Discrete Mathematics》 2013年第1期18-20,共3页
Riemann zeta function is an important tool in signal analysis and number theory. Applications of the zeta function include e.g. the generation of irrational and prime numbers. In this work we present a new accelerated... Riemann zeta function is an important tool in signal analysis and number theory. Applications of the zeta function include e.g. the generation of irrational and prime numbers. In this work we present a new accelerated series for Riemann zeta function. As an application we describe the recursive algorithm for computation of the zeta function at odd integer arguments. 展开更多
关键词 riemann ZETA function Converging SERIES Number Theory Cryptography Signal Processing COMPRESSIVE Sensing
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Doubly Periodic Riemann Boundary Value Problem of Non-Normal Type for Analytic Functions on Two Parallel Curves
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作者 Lixia Cao Huijun Zheng 《Advances in Pure Mathematics》 2015年第1期51-58,共8页
In this paper, we present and study a kind of Riemann boundary value problem of non-normal type for analytic functions on two parallel curves. Making use of the method of complex functions, we give the method for solv... In this paper, we present and study a kind of Riemann boundary value problem of non-normal type for analytic functions on two parallel curves. Making use of the method of complex functions, we give the method for solving this kind of doubly periodic Riemann boundary value problem of non-normal type and obtain the explicit expressions of solutions and the solvable conditions for it. 展开更多
关键词 DOUBLY PERIODIC HOLDER Continuous functions riemann Boundary Problem Non-Normal Type
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Proof of Riemann Conjecture Based on Contradiction between Xi-Function and Its Product Expression
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作者 Chuanmiao Chen 《Advances in Pure Mathematics》 2023年第7期463-472,共10页
Riemann proved three results: analytically continue ζ(s) over the whole complex plane s =σ + it with a pole s =1;(Theorem A) functional equation ξ(t) = G(s<sub>0</sub>)ζ (s<sub>0</sub>), s&... Riemann proved three results: analytically continue ζ(s) over the whole complex plane s =σ + it with a pole s =1;(Theorem A) functional equation ξ(t) = G(s<sub>0</sub>)ζ (s<sub>0</sub>), s<sub>0</sub> =1/2 + it and (Theorem B) product expression ξ<sub>1</sub>(t) by all roots of ξ(t). He stated Riemann conjecture (RC): All roots of ξ (t) are real. We find a mistake of Riemann: he used the same notation ξ(t) in two theorems. Theorem B must contain complex roots;it conflicts with RC. Thus theorem B can only be used by contradiction. Our research can be completed on s<sub>0</sub> =1/2 + it. Using all real roots r<sub>k</sub><sub> </sub>and (true) complex roots z<sub>j</sub> = t<sub>j</sub> + ia<sub>j</sub> of ξ (z), define product expressions w(t), w(0) =ξ(0) and Q(t) > 0, Q(0) =1 respectively, so ξ<sub>1</sub>(t) = w(t)Q(t). Define infinite point-set L(ω) = {t : t ≥10 and |ζ(s<sub>0</sub>)| =ω} for small ω > 0. If ξ(t) has complex roots, then ω =ωQ(t) on L(ω). Finally in a large interval of the first module |z<sub>1</sub>|>>1, we can find many points t ∈ L(ω) to make Q(t) . This contraction proves RC. In addition, Riemann hypothesis (RH) ζ for also holds, but it cannot be proved by ζ. 展开更多
关键词 riemann Conjecture Xi-function functional Equation Product Expression Multiplicative Group CONTRADICTION
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The Symmetry of Riemann <i>ξ</i>-Function
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作者 Chuanmiao Chen 《Advances in Pure Mathematics》 2020年第8期464-470,共7页
To prove RH, studying <span style="white-space:nowrap;"><em>ζ</em> </span>and using pure analysis method likely are two kinds of the incorrect guide. Actually, a unique hope may stud... To prove RH, studying <span style="white-space:nowrap;"><em>ζ</em> </span>and using pure analysis method likely are two kinds of the incorrect guide. Actually, a unique hope may study Riemann function <img src="Edit_b4e53620-7ae2-4a2b-aee0-351c62aef8cd.png" width="250" height="20" alt="" /> by geometric analysis, which has the symmetry: <span style="white-space:nowrap;"><em>v</em></span> = 0 if <span style="white-space:nowrap;"><em>β</em></span> = 0, and <img src="Edit_8c67c5d7-c1d4-4cad-8792-78e4bd172ebd.png" width="150" height="28" alt="" /> Assume that |<em>u</em>| is single peak in each root-interval <img src="Edit_a91df253-2965-4b03-8033-54aba2e23036.png" width="85" height="27" alt="" /> of <em>u</em> for any fixed <span style="white-space:nowrap;"><em>β</em></span> <span style="white-space:nowrap;">∈ (0,1/2]</span>, using the slope <em>u</em><sub><em>t </em></sub>of the single peak, we prove that <em>v</em> has opposite signs at two end-points of <em>I</em><sub><em>j</em></sub>, there surely is an inner point so that <em>v</em> = 0, so {|<em>u</em>|,|<em>v</em>|/<span style="white-space:nowrap;"><em>β</em></span>}form a local peak-valley structure, and have positive lower bound <img src="Edit_04798c0f-8e21-4a3a-ae12-0e28b01ee348.png" width="167" height="22" alt="" />in <em>I</em><sub><em>j</em></sub>. Because each <em>t</em> must lie in some <em style="white-space:normal;">I</em><sub style="white-space:normal;"><em>j</em></sub> , then ||<span style="white-space:nowrap;"><em>ξ</em></span>|| > 0 is valid for any <em>t</em>. In this way, the summation process of <span style="white-space:nowrap;"><em>ξ</em></span> is avoided. We have proved the main theorem: Assume that <em>u</em> (<em>t</em>, <span style="white-space:nowrap;"><em>β</em></span>) is single peak, then RH is valid for any <img src="Edit_ed8521a3-63b1-417f-a3b0-a3c790bae519.png" width="140" height="19" alt="" />. If using the equivalence of Lagarias (1999), the assumption of single peak can be canceled. Therefore our new thinking is that we have found the local peak-valley structure of <span style="white-space:nowrap;"><em>ξ</em></span>, which may be the geometry structure expected by Bombieri (2000), and proposed a basic framework of proving RH by geometric analysis. 展开更多
关键词 riemann ξ-function SYMMETRY Peak-Valley Structure Single Peak RH
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How to Prove Riemann Conjecture by Riemann’s Four Theorems
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作者 Chuanmiao Chen 《Advances in Pure Mathematics》 2024年第8期619-632,共15页
Riemann (1859) had proved four theorems: analytic continuation ζ(s), functional equation ξ(z)=G(s)ζ(s)(s=1/2+iz, z=t−i(σ−1/2)), product expression ξ1(z)and Riemann-Siegel formula Z(z), and proposed Riemann conjec... Riemann (1859) had proved four theorems: analytic continuation ζ(s), functional equation ξ(z)=G(s)ζ(s)(s=1/2+iz, z=t−i(σ−1/2)), product expression ξ1(z)and Riemann-Siegel formula Z(z), and proposed Riemann conjecture (RC): All roots of ξ(z)are real. We have calculated ξand ζ, and found that ξ(z)is alternative oscillation, which intuitively implies RC, and the property of ζ(s)is not good. Therefore Riemann’s direction is correct, but he used the same notation ξ(t)=ξ1(t)to confuse two concepts. So the product expression only can be used in contraction. We find that if ξhas complex roots, then its structure is destroyed, so RC holds. In our proof, using Riemann’s four theorems is sufficient, needn’t cite other results. Hilbert (1900) proposed Riemann hypothesis (RH): The non-trivial roots of ζhave real part 1/2. Of course, RH also holds, but can not be proved directly by ζ(s). 展开更多
关键词 riemann Conjecture ZETA-function Xi-function functional Equation Product Expression CONTRADICTION
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A Direct Proof for Riemann Hypothesis Based on Jacobi Functional Equation and Schwarz Reflection Principle
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作者 Xiang Liu Rybachuk Ekaterina Fasheng Liu 《Advances in Pure Mathematics》 2016年第4期193-200,共8页
Using the properties of theta-series and Schwarz reflection principle, a proof for Riemann hypothesis (RH) is directly presented and the first ten nontrivial zeros are easily obtained. From now on RH becomes Riemann T... Using the properties of theta-series and Schwarz reflection principle, a proof for Riemann hypothesis (RH) is directly presented and the first ten nontrivial zeros are easily obtained. From now on RH becomes Riemann Theorem (RT) and all its equivalent results and the consequences assuming RH are true. 展开更多
关键词 Theta-Series Jacobi functional Equation Schwarz Reflection Principle riemann Hypothesis (RH)
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协同拟凸函数的Riemann-Liouville分数阶积分不等式
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作者 郑茜 王淑红 《内蒙古民族大学学报(自然科学版)》 2024年第2期46-53,共8页
基于Riemann-Liouville分数阶积分,对协同拟凸函数的Hermite-Hadamard分数阶积分不等式进行了研究。剖析Riemann-Liouville分数阶积分的运算特点,深入探究SAR?KAYA给出的Riemann-Liouville分数阶积分恒等式。在该Riemann-Liouville分数... 基于Riemann-Liouville分数阶积分,对协同拟凸函数的Hermite-Hadamard分数阶积分不等式进行了研究。剖析Riemann-Liouville分数阶积分的运算特点,深入探究SAR?KAYA给出的Riemann-Liouville分数阶积分恒等式。在该Riemann-Liouville分数阶积分恒等式的基础上,利用二元函数的单调性和协同拟凸性,巧妙应用三角不等式和H?lder不等式等经典不等式,建立了若干个协同拟凸函数的Hermite-Hadamard分数阶积分不等式。 展开更多
关键词 协同拟凸函数 HERMITE-HADAMARD不等式 riemann-Liouville分数阶积分
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基于Riemann-Liouville分数阶积分Bernstein-Kantorovich算子的逼近性质
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作者 汪洋 程文韬 +1 位作者 刘玉洁 刘磊 《淮北师范大学学报(自然科学版)》 CAS 2024年第1期27-32,共6页
文章构造一种基于Riemann-Liouville分数阶积分的Bernstein-Kantorovich算子。利用一阶、二阶光滑模、Peetre’-K泛函和Lipschitz型极大函数等工具研究该算子的近似性质。然后利用一阶、二阶和四阶中心矩对该算子建立Vorononskaja型渐... 文章构造一种基于Riemann-Liouville分数阶积分的Bernstein-Kantorovich算子。利用一阶、二阶光滑模、Peetre’-K泛函和Lipschitz型极大函数等工具研究该算子的近似性质。然后利用一阶、二阶和四阶中心矩对该算子建立Vorononskaja型渐进公式。该算子的构建使得在曲线曲面造型方面对于给定的函数将会有更小的近似误差。 展开更多
关键词 BERNSTEIN-KANTOROVICH算子 riemann-Liouville分数阶积分 Peetre’-K泛函 Vorononskaja定理
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一个联系Riemann Zeta函数的Hilbert型积分不等式 被引量:4
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作者 杨必成 陈强 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2014年第5期869-872,共4页
通过引入独立参量,应用实分析技巧及权函数方法,建立一个最佳常数因子联系Riemann zeta函数的核为余割函数的Hilbert型积分不等式,并导出了其等价式与特殊参数下的齐次形式.
关键词 权函数 riemann ZETA函数 HILBERT型积分不等式 等价式
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一类新的包含Genocchi数与Riemann Zeta函数求和的计算公式 被引量:4
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作者 李志荣 李映辉 《山东大学学报(理学版)》 CAS CSCD 北大核心 2007年第4期79-83,共5页
利用第二类Stirling数,建立了一类含有Genocchi数与Riemann Zeta函数求和的一般计算公式,推广了已有的结果,改进了有关结论.
关键词 GENOCCHI数 riemann ZETA函数 Stifling数 计算公式 恒等式 发生函数
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Clifford分析中二正则函数的性质及某些Riemann边值问题 被引量:10
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作者 杨柳 杨丕文 《四川师范大学学报(自然科学版)》 CAS CSCD 北大核心 2006年第1期42-45,共4页
定义了Clifford分析中一类二正则函数,讨论了它的表示、柯西型积分、Plemelj公式及其他性质,同时研究了二正则函数的某些Riemann边值问题,得到了该问题解的具体表示式.
关键词 CLIFFORD分析 二正则函数 riemann边值问题
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