Diophantine equations and class numbers of real quadratic fields (Q2717603)

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scientific article; zbMATH DE number 1605201
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Diophantine equations and class numbers of real quadratic fields
scientific article; zbMATH DE number 1605201

    Statements

    Diophantine equations and class numbers of real quadratic fields (English)
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    17 June 2001
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    real quadratic field
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    class number
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    Pell's equation
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    higher degree Diophantine equation
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    Lucas sequence
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    cryptographic problem
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    convergent
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    divisibility
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    Let \(d\) be a positive integer that is square free, and let \(h(d)\) denote the class number of the real quadratic field \(\mathbb{Q}(\sqrt{d})\). In the present paper the authors give some results concerning the divisibility of \(h(d)\) while \(d\) satisfies \(da^2= 1+4b^2 k^{2n}\), where \(a,b,k,n\) are positive integers satisfying \(k>1\) and \(n>1\).
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