Results 11 to 20 of about 788,130 (111)

Simultaneous Diophantine approximation of rationals by rationals [PDF]

open access: yesJournal of Number Theory, 1986
For positive integers \(n\geq 2\), \(B\geq 2\), let \(S_ n(B)\) denote the set of rational vectors \(\alpha =(a_ 1/B,...,a_ n/B)\) with \(a_ j\in {\mathbb{Z}}\), \(0\leq a_ j0\), define N(\(\alpha\),\(\Delta)\) as the number of vectors \(\zeta =(x_ 1/x,...,x_ n/x)\) with \(1\leq ...
Lagarias, Jeffrey C, Hastad, Johan T
openaire   +2 more sources

Best simultaneous diophantine approximations under a constraint on the denominator [PDF]

open access: yes, 2006
We investigate the problem of best simultaneous Diophantine approximation under a constraint on the denominator, as proposed by Jurkat. New lower estimates for optimal approximation constants are given in terms of critical determinants of suitable ...
Aliev, Iskander, Gruber, Peter M.
core   +7 more sources

Simultaneous rational approximations and related diophantine equations.

open access: yes, 1990
We construct algebraic numbers for which especially sharp effective linear independence and simultaneous approximation measures can be proved. Similar results were obtained previously by Osgood and Fel'dman, but in certain special cases our results are ...
Rickert, John Henry
core   +7 more sources

Diophantine approximations using Padé approximations [PDF]

open access: yes, 2000
We show how Padé approximations are used to get Diophantine approximations of real or complex numbers, and so to prove the irrationality. We present two kinds of examples.
M. Prévost, Prévost, M.
core   +1 more source

GEOMETRIC THEOREMS, DIOPHANTINE EQUATIONS, AND ARITHMETIC FUNCTIONS [PDF]

open access: yes, 2002
This book contains short notes or articles, as well as studies on several topics of Geometry and Number theory. The material is divided into ve chapters: Geometric theorems; Diophantine equations; Arithmetic functions; Divisibility properties of numbers ...
Sándor, József
core   +1 more source

Simultaneous inhomogeneous diophantine approximation on manifolds [PDF]

open access: yesJournal of Mathematical Sciences, 2012
Dedicated to A.O.
Beresnevich, V. V., Velani, S. L.
openaire   +3 more sources

Lower bounds for simultaneous Diophantine approximation constants [PDF]

open access: yes, 2014
summary:After a brief exposition of the state-of-art of research on the (Euclidean) simultaneous Diophantine approximation constants $\theta _s$, new lower bounds are deduced for $\theta _6$ and $\theta _7$
Nowak, Werner Georg
core   +1 more source

A note on the quality of simultaneous Diophantine approximations obtained by the LLL algorithm

open access: yes, 2023
In 1982, A. K. Lenstra, H. W. Lenstra, and L. Lov\'asz introduced the first polynomial-time method to factor a nonzero polynomial $f \in \mathbb{Q}[x]$ into irreducible factors.
van Frankenhuijsen, Machiel   +1 more
core  

On simultaneous inhomogeneous Diophantine approximation [PDF]

open access: yesActa Arithmetica, 2006
In this paper, the authors study inhomogeneous problems in metrical Diophantine approximation. For a tuple \(\underline{\alpha} = (\alpha_1, \dots, \alpha_k) \in {\mathbb R}^k\) and real numbers \(v,w>0\), let \({\mathcal V}_v(\underline{\alpha})\) denote the set of \(\xi \in {\mathbb R}\) for which there is a \(c > 0\) such that the inequality ...
Bugeaud, Yann, Chevallier, Nicolas
openaire   +3 more sources

On the Number of Nonnegative Solutions to the Inequality a1 +....ar < n [PDF]

open access: yes, 2010
In this paper, we present a simple and fast method for counting the number of nonnegative integer solutions to the equality a1x1+a2x2+: : :+arxr = n where a1; a2; :::; ar and n are positive integers.
Farzaneh , A.   +3 more
core   +7 more sources

Home - About - Disclaimer - Privacy