Diophantine quadruples in the sequence of shifted Tribonacci numbers (Q2803021)

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scientific article; zbMATH DE number 6576809
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Diophantine quadruples in the sequence of shifted Tribonacci numbers
scientific article; zbMATH DE number 6576809

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    3 May 2016
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    Diophantine quadruples
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    Tribonacci numbers
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    lower bounds for nonzero linear forms in logarithms of algebraic numbers
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    Diophantine quadruples in the sequence of shifted Tribonacci numbers (English)
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    The Tribonacci sequence \(T_n\) is defined by \(T_0=0\), \(T_1=T_2=1\), and then every term is the sum of the previous three ones. The authors prove that among any four or more positive integers there are two whose product is not in \(T_n\). To prove their theorem, the authors combine certain arithmetic properties of the Tribonacci sequence and use Baker's method. The result is also related to the problem of Diophantine tuples.
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