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We prove that the Mordell-Tornheim zeta value of depth can be expressed as a rational linear combination of products of the Mordell-Tornheim zeta values of lower depth than when and its weight are of different parity.

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We provide new representations for the finite parts at the poles and the derivative at zero of the Barnes zeta function in any dimension in the general case. These representations are in the forms of series and limits. We also give an integral representation for the finite parts at the poles. Similar results are derived for an associated function, which we term homogeneous Barnes zeta function. Our expressions immediately yield analogous representations for the logarithm of the Barnes gamma function, including the particular case also known as multiple gamma function.  相似文献   

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对于慢收敛多重级数Ik=∑ from (n1,n2,…,nk=1) to ∞((-)1nlnn/n|n=n1+n2+…+nk,利用渐近展开方法给出闭形式.  相似文献   

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本文通过对几个交错多重调和级数的讨论,统一地得到了交错Mordell-Tornheim和Witten多重级数的一些已有的和新的表达式.  相似文献   

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We establish a series of indefinite integral formulae involving the Hurwitz zeta function and other elementary and special functions related to it, such as the Bernoulli polynomials, ln sin(q), ln (q) and the polygamma functions. Many of the results are most conveniently formulated in terms of a family of functions A k(q) := k(1 – k, q), k , and a family of polygamma functions of negative order, whose properties we study in some detail.  相似文献   

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We establish a series of integral formulae involving the Hurwitz zeta function. Applications are given to integrals of Bernoulli polynomials, ln (q) and ln sin(q).  相似文献   

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首先利用欧拉积分理论,证明余元公式的特殊情形.继而借助正弦函数的无穷乘积展开式及Γ函数定义,证明余元公式的一般情形.最后应用该公式,解决一些按通常方法不易计算的积分问题.  相似文献   

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We give a new proof of a theorem of Zudilin that equates a very-well-poised hypergeometric series and a particular multiple integral. This integral generalizes integrals of Vasilenko and Vasilyev which were proposed as tools in the study of the arithmetic behaviour of values of the Riemann zeta function at integers. Our proof is based on limiting cases of a basic hypergeometric identity of Andrews. Dedicated to Richard Askey on the occasion of his 70th birthday. Research partially supported by the programme “Improving the Human Research Potential” of the European Commission, grant HPRN-CT-2001-00272, “Algebraic Combinatorics in Europe”. 2000 Mathematics Subject Classification Primary—33C20; Secondary—11J72  相似文献   

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The classical formula of Cardano for a cubic equation is deduced as a solution of an initial-value problem for a differential equation. A connection is noted with the wave equation.  相似文献   

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We study Whittaker functions for generalized principal series representations of GSp(2,R) induced from Siegel parabolic subgroup. We give Mellin–Barnes type integral representations of Whittaker functions belonging to certain K-types. As an application of our explicit formulas, we compute the archimedean parts of Novodvorsky's zeta integrals. As a consequence we can show the entireness of the spinor L-functions for generic cusp forms on GSp(2).  相似文献   

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Values of new series sum(((2n-1)!ζ(2n))/(2n + 2k)!)α2n from n=1 to ∞,sum(((2n-1)!ζ(2n))/(2n+2k +1)!)β2n from n=1 to ∞ are given concerning ζ(2k + 1),where k is a positive integer,α can be taken as 1,1/2,1/3,2/3,1/4,3/4,1/6,5/6 and β can be taken as 1,1/2.Some previous results are included as special cases in the present paper and new series converges more rapidly than those exsiting results for α = 1/3,or α = 1/4,or α = 1/6.  相似文献   

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In this short note, we point out an interesting connection between series with zeta values and certain infinite products. Using this connection we give a closed-form evaluation of a special class of series with zeta values in the coefficients.  相似文献   

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We discuss zeta extensions in the sense of Kurokawa and Wakayama, Proc. Japan Acad. 2002, for constructing new zeta functions from a given zeta function. This notion appeared when we introduced higher zeta functions such as higher Riemann zeta functions in Kurokawa et al., Kyushu Univ. Preprint, 2003, and a higher Selberg zeta functions in Kurokawa and Wakayama, Comm. Math. Phys., 2004. In this article, we first recall some explicit examples of such zeta extensions and give a conjecture about functional equations satisfied by higher zeta functions. We devote the second part to making a detailed study of the double sine functions which are treated in a framework of the zeta extensions.Mathematics Subject Classification (2000) 11M36.Partially supported by Grant-in-Aid for Scientific Research (B) No. 15340012, and by Grant-in-Aid for Exploratory Research No. 13874004. This is based on the talk at The 2002 Twente Conference on Lie Groups 16–18 Dec. University of Twente, Enschede, The Netherlands.  相似文献   

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In this paper we examine when the order of a pole of Igusa's local zeta function associated to a polynomial is smaller than ``expected'. We carry out this study in the case that is sufficiently non-degenerate with respect to its Newton polyhedron , and the main result of this paper is a proof of one of the conjectures of Denef and Sargos. Our technique consists in reducing our question about the polynomial to the same question about polynomials , where are faces of depending on the examined pole and is obtained from by throwing away all monomials of whose exponents do not belong to . Secondly, we obtain a formula for Igusa's local zeta function associated to a polynomial , with unstable, which shows that, in this case, the upperbound for the order of the examined pole is obviously smaller than ``expected'.

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In this paper we shall define the analytic continuation of the multiple (Euler-Riemann-Zagier) zeta functions of depth :

where and . We shall also study their behavior near the poles and pose some open problems concerning their zeros and functional equations at the end.

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Historically, the polylogarithm has attracted specialists and non-specialists alike with its lovely evaluations. Much the same can be said for Euler sums (or multiple harmonic sums), which, within the past decade, have arisen in combinatorics, knot theory and high-energy physics. More recently, we have been forced to consider multidimensional extensions encompassing the classical polylogarithm, Euler sums, and the Riemann zeta function. Here, we provide a general framework within which previously isolated results can now be properly understood. Applying the theory developed herein, we prove several previously conjectured evaluations, including an intriguing conjecture of Don Zagier.

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An improvement in the generation of some second-order surfaces of rotation and their construction is presented. In this case, a cube is rotated about one its diagonals to obtain a hyperboloid of one sheet with two duplicate cones on each side.  相似文献   

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