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In this paper we present a new family of identities for Euler sums and integrals of polylogarithms by using the methods of generating function and integral representations of series. Then we apply it to obtain the closed forms of all…

Number Theory · Mathematics 2017-07-18 Ce Xu

Abundancy index refers to the ratio of the sum of the divisors of a number to the number itself. It is a concept of great importance in defining friendly and perfect numbers. Here, we describe a suitable generalization of abundancy index to…

Number Theory · Mathematics 2020-04-29 Vrishab Krishna

We improve using elementary means an explicit bound on the divisor function due to Friedlander and Iwaniec. Consequently we modestly improve a result regarding a sieving inequality for Gaussian sequences.

Number Theory · Mathematics 2018-01-15 Jeffrey P. S. Lay

Let $ x\geq 1 $ be a large number, let $ [x]=x-\{x\} $ be the largest integer function, and let $ \varphi(n)$ be the Euler totient function. The result $ \sum_{n\leq x}\varphi([x/n])=(6/\pi^2)x\log x+O\left ( x(\log x)^{2/3}(\log\log…

General Mathematics · Mathematics 2021-04-12 N. A. Carella

The aim of this article is to define some new families of the special numbers. These numbers provide some further motivation for computation of combinatorial sums involving binomial coefficients and the Euler kind numbers of negative order.…

Number Theory · Mathematics 2018-05-16 Yilmaz Simsek

We give explicit bounds on sums of $d(n)^2$ and $d_4(n)$, where $d(n)$ is the number of divisors of $n$ and $d_4(n)$ is the number of ways of writing $n$ as a product of four numbers. In doing so we make a slight improvement on the upper…

Number Theory · Mathematics 2021-02-02 Michaela Cully-Hugill , Timothy Trudgian

We propose an explicit and practical algorithm for computing Galois conjugates and irreducible polynomials for special values of modular functions evaluated at CM points associated with imaginary quadratic orders. Our approach builds upon…

Number Theory · Mathematics 2025-06-18 Ja Kyung Koo , Dong Hwa Shin , Dong Sung Yoon

Much recent progress has been made concerning the probable existence of Odd Perfect Numbers, forming part of what has come to be known as Sylvester's Web Of Conditions. This paper proves some results concerning certain properties of the…

Number Theory · Mathematics 2012-11-21 Siddhartha Basak

We give explicit evaluations of the linear and non-linear Euler sums of hyperharmonic numbers $h_{n}^{\left( r\right) }$ with reciprocal binomial coefficients. These evaluations enable us to extend closed form formula of Euler sums of…

Number Theory · Mathematics 2021-03-23 Levent Kargın , Mümün Can , Ayhan Dil , Mehmet Cenkci

We interpret tensors on a smooth manifold M as differential forms over a graded commutative algebra called the algebra of iterated differential forms over M. This allows us to put standard tensor calculus in a new differentially closed…

Differential Geometry · Mathematics 2010-05-05 A. M. Vinogradov , L. Vitagliano

We consider a generalized Gauss sum supported on matrices over a number field. We evaluate this Gauss sum and relate it to the number of totally isotropic subspaces of related quadratic spaces. Then we consider a further generalization of…

Number Theory · Mathematics 2017-08-29 Lynne Walling

In this paper, we study the sum of the divisor function over sets with digit restrictions.

Number Theory · Mathematics 2024-11-26 Jiseong Kim

We study the explicit formula of Euler numbers and polynomials of higher order

Number Theory · Mathematics 2007-05-23 Taekyun Kim

The Euler's form of odd perfect numbers, if any, is $n=\pi^{\alpha}N^2$, where $\pi$ is prime, $(\pi,N)=1$ and $\pi\equiv \alpha \equiv 1 \pmod{4}$. Dris conjecture states that $N>\pi^{\alpha}$. We find that $N^2>\frac{1}{2}\pi^{\gamma}$,…

Number Theory · Mathematics 2017-06-08 Paolo Starni

By simple elementary method,we obtain with ease,a highly simple expression for the remainder term of the divisor problem and use it to obtain an Euler-Maclaurin analogue of summation involving divisor function.We also obtain a relation…

Number Theory · Mathematics 2008-09-13 Vivek V. Rane

We prove an Euler-Maclaurin formula for double polygonal sums and, as a corollary, we obtain approximate quadrature formulas for integrals of smooth functions over polygons with integer vertices. Our Euler-Maclaurin formula is in the spirit…

Classical Analysis and ODEs · Mathematics 2020-04-21 Luca Brandolini , Leonardo Colzani , Sinai Robins , Giancarlo Travaglini

Our paper is devoted to several problems from the field of modified divisors: namely exponential and infinitary divisors. We study the behaviour of modified divisors, sum-of-divisors and totient functions. Main results concern with the…

Number Theory · Mathematics 2014-06-24 Andrew V. Lelechenko

We define an axiomatic class of L-functions extending the Selberg class. We show in particular that one can recast the traditional conditions of an Euler product, analytic continuation and functional equation in terms of distributional…

Number Theory · Mathematics 2015-02-16 Andrew R. Booker

We use the resolution of singularities algorithm of [G4] to provide new estimates for exponential sums as well as new bounds on how often a function f(x) such as a polynomial with integer coefficients is divisible by various powers of a…

Classical Analysis and ODEs · Mathematics 2014-12-11 Michael Greenblatt

We prove several new variants of the Lambert series factorization theorem established in the first article "Generating special arithmetic functions by Lambert series factorizations" by Merca and Schmidt (2017). Several characteristic…

Combinatorics · Mathematics 2017-06-09 Mircea Merca , Maxie D. Schmidt
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