Work

Sum of terms of recurrence sequences in the solution sets of generalized Pell equations

Year: 2025
Type: article
Abstract: Let (Xk)k⩾1 and (Yk)k⩾1 be sequences of X and Y-coordinates of the positive integer solutions (x,y) of the equation x2−dy2=t. In this paper, we completely describe these recurrence sequences such that the sums of two terms of recurrence sequences in the solution sets of generalized Pell equations are infinitely many. Further, we give an upper bound for the number of such terms when there are only finitely many of them. This work is motivated by the recent paper of Hajdu and Sebestyén (Int. J. Number Theory 18 (2022), 1605-1612).
Language: English
Open Access status: green
OpenAlex ID: W4411334144
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Cites: 19
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Related to: 10