Results on the ratios of the terms of second order linear recurrences
Root separation for reducible integer polynomials
We construct parametric families of (monic) reducible polynomials having two roots very close to each other.
Scharfe Irrationalitätsmaße für Zahlen, die mit Bessel-Funktionen zusammenhängen.
Sets of exact approximation order by rational numbers III
Short proofs of theorems of Lekkerkerker and Ballieu.
Simultaneous approximation to a real number and to its cube by rational numbers
Suites colorées
Sur le spectre de Lagrange d'un ensemble de nombres réels
Symmetric and asymmetric Diophantine approximation of continued fractions
The best Diophantine approximation functions by continued fractions
Let be an irrational number in simple continued fraction expansion, , . In this note we find a function such that Together with a result the author obtained, this shows that to find two best approximation functions and is a well-posed problem. This problem has not been solved yet.
The Conjugate Property of the Borel Theorem on Diophantine Approximation.
The Lagrange spectrum of a set
The Rhin-Viola method for log 2
Thue's Fundamentaltheorem, I: The general case
Transcendence measures of certain numbers whose transcendency was proved by A. Baker
Transcendence measures of exponentials and logarithms of algebraic numbers
Über Annäherungswerte algebraischer Zahlen.
Über das Approximationsspektrum des Einheitskreises.
Ueber die angenäherte Darstellung der Irrationalzahlen durch rationale Brüche.
Une mesure de transcendance de