1,070 research outputs found

    On a class of qq-Bernoulli, qq-Euler and qq-Genocchi polynomials

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    The main purpose of this paper is to introduce and investigate a class of qq-Bernoulli, qq-Euler and qq-Genocchi polynomials. The qq-analogues of well-known formulas are derived. The qq-analogue of the Srivastava--Pint\'er addition theorem is obtained. Some new identities involving qq-polynomials are proved

    A Few Finite Trigonometric Sums

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    Finite trigonometric sums occur in various branches of physics, mathematics, and their applications. These sums may contain various powers of one or more trigonometric functions. Sums with one trigonometric function are known, however sums with products of trigonometric functions can get complicated and may not have a simple expressions in a number of cases. Some of these sums have interesting properties and can have amazingly simple value. However, only some of them are available in literature. We obtain a number of such sums using method of residues.Comment: 11 pages, added references, corrected typo

    Bernoulli Number Identities from Quantum Field Theory and Topological String Theory

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    We present a new method for the derivation of convolution identities for finite sums of products of Bernoulli numbers. Our approach is motivated by the role of these identities in quantum field theory and string theory. We first show that the Miki identity and the Faber-Pandharipande-Zagier (FPZ) identity are closely related, and give simple unified proofs which naturally yield a new Bernoulli number convolution identity. We then generalize each of these three identities into new families of convolution identities depending on a continuous parameter. We rederive a cubic generalization of Miki's identity due to Gessel and obtain a new similar identity generalizing the FPZ identity. The generalization of the method to the derivation of convolution identities of arbitrary order is outlined. We also describe an extension to identities which relate convolutions of Euler and Bernoulli numbers.Comment: 18 pages, final version published in CNTP (title modified, note added on relevant work that has appeared since the preprint version; otherwise unchanged
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