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An upper bound for the norm of a GCD-related matrix


We find an upper bound for the norm of the matrix whose entry is, where and are the greatest common divisor and the least common multiple of and and where and are real numbers. In fact, we show that if and, then for all positive integers, where is the Riemann zeta function.



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Correspondence to Pentti Haukkanen.

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Haukkanen, P. An upper bound for the norm of a GCD-related matrix. J Inequal Appl 2006, 25020 (2006).

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