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Ismaïla Diouf

Publications and source records attributed to Ismaïla Diouf.

3 recordsLinked to original sources

On the Diophantine equation $\displaystyle \sum _{k=1}^{5}F_{n_k}=2^a$

Let $(F_n)_{n\geq 0}$ be the Fibonacci sequence given by $F_0 = 0, F_1 = 1$ and $F_{n+2} = F_{n+1}+F_n$ for $n \geq 0$. In this paper, we have determined all the powers of 2 which are sums of five Fibonacci numbers with few exceptions that we characterize. We have also stated an open problem relating to the number of solutions of equations like those studied in this paper.

math.NT

On solutions of the Diophantine equation $\mathcal{P}_m-L_n=c$

\noindent In this article, we determine all the integers $c$ having at least two representations as difference between two linear recurrent sequences. This is a variant of the Pillai's equation. This equation is an exponential Diophantine equation. The proof of our main theorem uses lower bounds for linear forms of logarithms, properties of continued fractions, and a version of the Baker-Davenport reduction method in Diophantine approximation.

math.NT