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Published in 2017 at "manuscripta mathematica"
DOI: 10.1007/s00229-018-1070-8
Abstract: We study elements of second order linear recurrence sequences $$(G_n)_{n= 0}^{\infty }$$(Gn)n=0∞ of polynomials in $${{\mathbb {C}}}[x]$$C[x] which are decomposable, i.e. representable as $$G_n=g\circ h$$Gn=g∘h for some $$g, h\in {{\mathbb {C}}}[x]$$g,h∈C[x] satisfying $$\deg g,\deg h>1$$degg,degh>1.…
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Keywords:
second order;
order linear;
recurrence sequences;
linear recurrence ... See more keywords
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Published in 2019 at "Journal of Number Theory"
DOI: 10.1016/j.jnt.2018.10.009
Abstract: Abstract In this paper we give various finiteness results concerning terms of recurrence sequences U n representable as a sum of S-units with a fixed number of terms. We prove that under certain (necessary) conditions,…
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Keywords:
recurrence sequences;
number;
sums units;
recurrence ... See more keywords
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Published in 2017 at "International Journal of Number Theory"
DOI: 10.1142/s1793042117500166
Abstract: We give finiteness results concerning terms of linear recurrence sequences having a representation as a linear combination, with fixed coefficients, of powers of fixed primes. On one hand, under certain conditions, we give effective bounds…
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Keywords:
linear combinations;
recurrence;
recurrence sequences;
combinations prime ... See more keywords