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We construct explicitly Pad\'e approximations of the second kind for a special class of G-functions. These are then applied to prove a Baker-type lower bound for linear forms in the p-adic values of these functions. Moreover, we consider…

Number Theory · Mathematics 2018-07-27 Keijo Väänänen

We show how the theory of linear forms in two logarithms allows one to get effective irrationality measures for $n$-th roots of rational numbers ${a \over b}$, when $a$ is very close to $b$. We give a $p$-adic analogue of this result under…

Number Theory · Mathematics 2016-10-05 Yann Bugeaud

We find upper and lower bounds on the number of rational points that are $\psi$-approximations of some $n$-dimensional $p$-adic integer. Lattice point counting techniques are used to find the upper bound result, and a Pigeon-hole principle…

Number Theory · Mathematics 2021-03-30 Benjamin Ward

We shall consider a result of Fel'dman, where a sharp Baker-type lower bound is obtained for linear forms in the values of some E-functions. Fel'dman's proof is based on an explicit construction of Pad\'e approximations of the first kind…

Number Theory · Mathematics 2017-04-07 Keijo Väänänen

We provide a technique to obtain explicit bounds for problems that can be reduced to linear forms in three complex logarithms of algebraic numbers. This technique can produce bounds significantly better than general results on lower bounds…

Number Theory · Mathematics 2023-10-02 Maurice Mignotte , Paul Voutier

This work falls within the theory of linear forms in logarithms over a commutative linear group defined over a number field. We give lower bounds for simultaneous linear forms in logarithms of algebraic numbers, treating both the…

Number Theory · Mathematics 2012-06-04 Éric Gaudron

In this note, basing on a certain functional equation of the dilogarithm function, we establish nontrivial lower bounds for the $p$-adic valuation (where $p$ is a given prime number) of some type of rational numbers involving harmonic…

Number Theory · Mathematics 2022-12-08 Bakir Farhi

Let $m\ge 2$ be an integer, $K$ an algebraic number field and $\alpha\in K\setminus \{0,-1\}$ with sufficiently small absolute value. In this article, we provide a new lower bound for linear form in…

Number Theory · Mathematics 2019-04-04 Makoto Kawashima

In this note, we shall give an improved lower bound for the argument of a power of a given algebraic number which has absolute value one but is not a root of unity.

Number Theory · Mathematics 2025-06-03 Tomohiro Yamada

We relate a previous result of ours on families of Diophantine equations having only trivial solutions with a result on the approximation of an algebraic number by products of rational numbers and units. We compare this approximation with a…

Number Theory · Mathematics 2013-12-30 Claude Levesque , Michel Waldschmidt

I present here the proofs of results, which are obtained in my papers "On the linear forms with algebraic coefficoients of logarithms of algebraic numbers", VINITI, 1996, 1617-B96, pp. 1 - 23 (in Russian), and "On the systems of linear…

Number Theory · Mathematics 2016-09-07 L. A. Gutnik

In this paper, we will show that the $p$-adic valuation (where $p$ is a given prime number) of some type of rational numbers is unusually large. This generalizes the very recent results by the author and by A. Dubickas, which are both…

Number Theory · Mathematics 2022-12-02 Bakir Farhi

In this paper, we study linear forms \[\lambda = \beta_1\mathrm{e}^{\alpha_1}+\cdots+\beta_m\mathrm{e}^{\alpha_m},\] where $\alpha_i$ and $\beta_i$ are algebraic numbers. An explicit lower bound for the absolute value of $\lambda$ is…

Number Theory · Mathematics 2022-05-17 Cheng-Chao Huang

In this paper we study $p$-adic Diophantine approximation on manifolds, specifically multiplicative Diophantine approximation on affine subspaces and a Diophantine dichotomy for analytic $p$-adic manifolds.

Number Theory · Mathematics 2019-11-05 Shreyasi Datta , Anish Ghosh

Pad\'e approximants are rational functions whose series expansion match a given series as far as possible. These approximants are usually written under a rational form. In this paper, we will show how to write them also under two different…

Numerical Analysis · Mathematics 2014-04-29 Claude Brezinski , Michela Redivo-Zaglia

A complete p-adic Khintchine type theorem for approximation by p-adic algebraic numbers is established.

Number Theory · Mathematics 2008-02-15 Victor Beresnevich , Vasili Bernik , Ella Kovalevskaya

We show how one can obtain rational approximants for $q$-extensions of the harmonic series and the logarithm (and many other similar quantities) by Pad\'e approximation using little $q$-Legendre polynomials and we show that properties of…

Classical Analysis and ODEs · Mathematics 2013-10-04 Walter Van Assche

We construct a class of multiple Legendre polynomials and prove that they satisfy an Ap\'ery-like recurrence. We give new upper bounds of the approximation measures of logarithms of rational numbers by algebraic numbers of bounded degree.…

Number Theory · Mathematics 2025-12-16 Raffaele Marcovecchio

We show that the reduction mod p of an orthogonal linear representation is orthogonal, and we generalize this fact to representations of algebras with involution.The proofs make an essential use of the notion of " middle lattices ".

Group Theory · Mathematics 2018-08-09 Jean-Pierre Serre

The goal of this paper is to develop the theory of weighted Diophantine approximation of rational numbers to $p$-adic numbers. Firstly, we establish complete analogues of Khintchine's theorem, the Duffin-Schaeffer theorem and the…

Number Theory · Mathematics 2021-07-08 Victor Beresnevich , Jason Levesley , Benjamin Ward
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