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Displaying similar documents to “Best simultaneous diophantine approximations of some cubic algebraic numbers”

On the critical determinants of certain star bodies

Werner Georg Nowak (2017)

Communications in Mathematics

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In a classic paper, W.G. Spohn established the to-date sharpest estimates from below for the simultaneous Diophantine approximation constants for three and more real numbers. As a by-result of his method which used Blichfeldt’s Theorem and the calculus of variations, he derived a bound for the critical determinant of the star body | x 1 | ( | x 1 | 3 + | x 2 | 3 + | x 3 | 3 ) 1 . In this little note, after a brief exposition of the basics of the geometry of numbers and its significance for Diophantine approximation, this latter result...