Linear combinations of prime powers in sums of terms of binary recurrence sequences |
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Authors: | Nabin Kumar Meher Sudhansu Sekhar Rout |
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Institution: | 1.Harish-Chandra Research Institute (HBNI),Jhunsi,India |
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Abstract: | Let (U n ) n≥0 be a nondegenerate binary recurrence sequence with positive discriminant. Let p 1 , . . . , p s be fixed prime numbers, b 1 , . . . , b s be fixed nonnegative integers, and a 1 , . . . , a t be positive integers. In this paper, under certain assumptions, we obtain a finiteness result for the solution of the Diophantine equation \( {\alpha}_1{U}_{n1}+\cdots +{\alpha}_t{U}_{n1}={b}_1{p}_1^{z_1}+\cdots {b}_s{p}_s^{z_s}. \) Moreover, we explicitly solve the equation F n1 + F n2 = 2 z1 + 3 z2 in nonnegative integers n 1, n 2, z 1, z 2 with z 2 ≥ z 1. The main tools used in this work are the lower bound for linear forms in logarithms and the Baker–Davenport reduction method. This work generalizes the recent papers E. Mazumdar and S.S. Rout, Prime powers in sums of terms of binary recurrence sequences, arXiv:1610.02774] and C. Bertók, L. Hajdu, I. Pink, and Z. Rábai, Linear combinations of prime powers in binary recurrence sequences, Int. J. Number Theory, 13(2):261–271, 2017]. |
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