Integer solutions of the system of equations \(x^2-6y^2=1\) and \(y^2-Dz^2=4\) (Q2743115)

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scientific article; zbMATH DE number 1651088
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Integer solutions of the system of equations \(x^2-6y^2=1\) and \(y^2-Dz^2=4\)
scientific article; zbMATH DE number 1651088

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    24 September 2001
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    pair of quadratic Diophantine equations
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    simultaneous Pell equations
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    Integer solutions of the system of equations \(x^2-6y^2=1\) and \(y^2-Dz^2=4\) (English)
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    Let \(D\) be a square free positive integer. The author proves that (1) if \(D\) is an odd prime with \(D\neq 11\), then the simultaneous Pell equations \((*)\) \(x^2-6y^2=1\) and \(y^2-Dz^2=4\) have no positive integer solution \((x,y,z)\). (ii) If \(D=11\), then \((*)\) has only the solution \((x,y,z)= (49,20,6)\).
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