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Abstract
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Let
,
be quadratic real numbers in distinct quadratic fields. We establish
the existence of effectively computable, positive real numbers
and
such that, for
every integer
with
,
we have
where
denotes the distance to the nearest integer.
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To the memory of Naum Ilich Feldman
(1918–1994)
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Keywords
simultaneous approximation, Pell equation, linear form in
logarithms
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Mathematical Subject Classification 2010
Primary: 11J13
Secondary: 11D09, 11J86
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Milestones
Received: 29 July 2019
Revised: 9 March 2020
Accepted: 23 March 2020
Published: 5 November 2020
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