Abstract
In a series of papers, we constructed large families of normal numbers using the distribution of the values of the largest prime factor function. Here, letting \(p(n)\) stand for the smallest prime factor of \(n\), we show how a concatenation of the successive values of \(p(n)\) can yield a normal number in any given basis \(q\ge 2\). We further expand on this idea to create various large families of normal numbers.
Résumé
Dans une série d’articles, nous avons construit de grandes familles de nombres normaux en utilisant les valeurs successives prises par la fonction lq “plus grand facteur premier”. Ici, en désignant par \(p(n)\) le plus petit facteur premier de l’entier \(n\), nous montrons comment une concaténation des valeurs successives de \(p(n)\) peut créer un nombre normal dans n’importe quelle base \(q\ge 2\). Nous exploitons ensuite cette idée pour créer une grande variété de familles de nombres normaux.
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References
Bassily, N.L., Kátai, I.: Distribution of consecutive digits in the \(q\)-ary expansions of some sequences of integers. J. Math. Sci. 78(1), 11–17 (1996)
Davenport, H., Erdős, P.: Note on normal decimals. Can. J. Math. 4, 58–63 (1952)
De Koninck, J.M., Kátai, I.: On a problem on normal numbers raised by Igor Shparlinski. Bull. Aust. Math. Soc. 84, 337–349 (2011)
De Koninck, J.M., Kátai, I.: Some new methods for constructing normal numbers. Ann. Sci. Math. Québec 36(2), 349–359 (2012)
De Koninck, J.M., Kátai, I.: Construction of normal numbers using the distribution of the \(k\)-th largest prime factor. J. Aust. Math. Soc. 88, 158–168 (2013)
Elliott, P.D.T.A.: Probabilistic Number Theory I, Mean Value Theorems. Springer, Berlin (1979)
Halberstam, H.H., Richert, H.E.: Sieve Methods. Academic Press, London (1974)
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Research supported in part by a grant from NSERC. Research supported by ELTE IK.
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De Koninck, JM., Kátai, I. Normal numbers generated using the smallest prime factor function. Ann. Math. Québec 38, 133–144 (2014). https://doi.org/10.1007/s40316-014-0022-2
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DOI: https://doi.org/10.1007/s40316-014-0022-2