Prime divisors of linear recurrences and Artin's primitive root conjecture for number fields
Journal de théorie des nombres de Bordeaux, Tome 13 (2001) no. 1, pp. 303-314.

Soit S une suite définie par une récurrence linéaire entière d’ordre k≥3. On note PS l’ensemble des nombres premiers qui divisent au moins l’un des termes de S. Nous donnons une approche heuristique du problème selon lequel PS admet ou non une densité naturelle, et montrons que certains aspects de ces heuristiques sont corrects. Sous l’hypothèse d’une certaine généralisation de la conjecture d’Artin pour les racines primitives, nous montrons que PS possède une densité asymptotique inférieure pour toute suite S “générique”. Nous donnons en illustration des exemples numériques.

Let S be a linear integer recurrent sequence of order k≥3, and define PS as the set of primes that divide at least one term of S. We give a heuristic approach to the problem whether PS has a natural density, and prove that part of our heuristics is correct. Under the assumption of a generalization of Artin’s primitive root conjecture, we find that PS has positive lower density for “generic” sequences S. Some numerical examples are included.

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     title = {Prime divisors of linear recurrences and {Artin's} primitive root conjecture for number fields},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {303--314},
     publisher = {Universit\'e Bordeaux I},
     volume = {13},
     number = {1},
     year = {2001},
     mrnumber = {1838089},
     zbl = {1044.11005},
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     url = {https://www.numdam.org/item/JTNB_2001__13_1_303_0/}
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Roskam, Hans. Prime divisors of linear recurrences and Artin's primitive root conjecture for number fields. Journal de théorie des nombres de Bordeaux, Tome 13 (2001) no. 1, pp. 303-314. https://www.numdam.org/item/JTNB_2001__13_1_303_0/

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