Sign changes in sums of the Liouville function |
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Authors: | Peter Borwein Ron Ferguson Michael J Mossinghoff |
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Institution: | Department of Mathematics and Statistics, Simon Fraser University, Burnaby, B.C. V5A 1S6 Canada ; Department of Mathematics and Statistics, Simon Fraser University, Burnaby, B.C. V5A 1S6 Canada ; Department of Mathematics, Davidson College, Davidson, North Carolina 28035-6996 |
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Abstract: | The Liouville function is the completely multiplicative function whose value is at each prime. We develop some algorithms for computing the sum , and use these methods to determine the smallest positive integer where . This answers a question originating in some work of Turán, who linked the behavior of to questions about the Riemann zeta function. We also study the problem of evaluating Pólya's sum , and we determine some new local extrema for this function, including some new positive values. |
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Keywords: | Liouville function P\'olya's sum Tur\'an's sum Riemann hypothesis |
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