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The natural logarithm can be represented by an infinite series that converges for all positive real values of the variable, and which makes concavity patently obvious. Concavity of the natural logarithm is known to imply, among other…

Classical Analysis and ODEs · Mathematics 2012-04-19 David M. Bradley

Generalizations of linear numeration systems in which the set of natural numbers is recognizable by finite automata are obtained by describing an arbitrary infinite regular language following the lexicographic ordering. For these systems of…

Other Computer Science · Computer Science 2007-05-23 Pierre B. A. Lecomte , Michel Rigo

It seems reasonable that a toroid can be thought of approximately as a solenoid bent into a circle. The correspondence of the inductances of these two objects gives an approximation for the natural logarithm in terms of the average of two…

Popular Physics · Physics 2015-03-13 Ibrahim Semiz

Every natural number greater than two may be written as the sum of a prime and a square-free number. We establish several generalisations of this, by placing divisibility conditions on the square-free number.

Number Theory · Mathematics 2020-11-12 Forrest J. Francis , Ethan S. Lee

Lueck expressed the Gromov norm of a knot complement in terms of an infinite series that can be computed from a presentation of the fundamental group of the knot complement. In this note we show that Lueck's formula, applied to torus knots,…

Geometric Topology · Mathematics 2007-05-23 Oliver T. Dasbach

We obtained a new formula for $\pi$.

Number Theory · Mathematics 2025-11-05 Nikita Kalinin , Mikhail Shkolnikov

Generalized L\"uroth series generalize $b$-adic representations as well as L\"uroth series. Almost all real numbers are normal, but it is not easy to construct one. In this paper, a new construction of normal numbers with respect to…

Number Theory · Mathematics 2015-09-29 Max Aehle , Matthias Paulsen

It is shown that the set of palindromes is an additive basis for the natural numbers in any base. Specifically, we prove that every natural number can be expressed as the sum of $O(d)$ palindromes in base $d$.

Number Theory · Mathematics 2022-04-19 Yu Gao

For an integer $x$ let $t_x$ denote the triangular number $x(x+1)/2$. Following a recent work of Z. W. Sun, we show that every natural number can be written in any of the following forms with $x,y,z\in\Z$: $$x^2+3y^2+t_z, x^2+3t_y+t_z,…

Number Theory · Mathematics 2007-12-24 Song Guo , Hao Pan , Zhi-Wei Sun

It is well-known that the equations for a simple fluid can be cast into what is called their Lagrange formulation. We introduce a notion of a generalized Lagrange formulation, which is applicable to a wide variety of systems of partial…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Robert Geroch , Gabriel Nagy , Oscar Reula

We define the field $\mathbb{L}$ of logarithmic hyperseries, construct on $\mathbb{L}$ natural operations of differentiation, integration, and composition, establish the basic properties of these operations, and characterize these…

Logic · Mathematics 2018-10-04 Lou van den Dries , Joris van der Hoeven , Elliot Kaplan

In this note we describe a new method of counting the number of unordered factorizations of a natural number by means of a generating function and a recurrence relation arising from it, which improves an earlier result in this direction.

Discrete Mathematics · Computer Science 2008-11-24 Shamik Ghosh

In this paper we continue our research on the concept of liken. This notion has been defined as a sequence of non-negative real numbers, tending to infinity and closed with respect to addition in $\mathbb{R}$. The most important examples of…

Number Theory · Mathematics 2021-09-20 Edward Tutaj

Let $L=(L_d)_{d \in \mathbb N}$ be any ordered probability sequence, i.e., satisfying $0 < L_{d+1} \le L_d$ for each $d \in \mathbb N$ and $\sum_{d \in \mathbb N} L_d =1$. We construct sequences $A = (a_i)_{i \in \mathbb N}$ on the…

Number Theory · Mathematics 2024-02-23 Aafko Boonstra , Charlene Kalle

For a polynomial P, we consider the sequence of iterated integrals of ln P(x). This sequence is expressed in terms of the zeros of P(x). In the special case of ln(1 + x^2), arithmetic properties of certain coefficients arising are…

Number Theory · Mathematics 2014-04-18 Tewodros Amdeberhan , Christoph Koutschan , Victor H. Moll , Eric S. Rowland

We investigate Newton series for truncated multiple $L$-values and thereby obtain a class of relations for multiple $L$-values. In addition, we give a formulation and a proof of extended derivation relations for multiple $L$-values.

Number Theory · Mathematics 2008-01-27 Gaku Kawashima , Tatsushi Tanaka

We present many novel results in number theory, including a double series formula for the natural logarithm and a proof concerning the H\"older mean based on the functional equation for the Riemann zeta function. We find a harmonic mean…

Number Theory · Mathematics 2022-11-22 Sinan Deveci

We define an appropriate logarithm function on time scales and present its main properties. This gives answer to a question posed by M. Bohner in [J. Difference Equ. Appl. {\bf 11} (2005), no. 15, 1305--1306].

Classical Analysis and ODEs · Mathematics 2013-11-11 Dorota Mozyrska , Delfim F. M. Torres

We extend the definition and study the algebraic properties of the polylogarithm Li(T), where T is rational series over the alphabet X = {x 0, x 1} belonging to suitable subalgebras of rational series.

Combinatorics · Mathematics 2016-04-11 Ngoc Hoang , Gérard Duchamp , Hoang Ngoc Minh

In this article we prove an algebraic identity which significantly generalizes the formula for sum of powers of consecutive integers involving Stirling numbers of the second kind. Also we have obtained a generalization of Newton-Girard…

Combinatorics · Mathematics 2020-05-01 Sudip Bera , Sajal Kumar Mukherjee
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