Number Theory and Algebra

1. Engin Özkan, “3-Step Fibonacci Sequences in Nilpotent Groups”, Applied Mathematics and Computation, 144 (2003), 517-527
2. Engin Özkan, “Truncated Lucas Sequence and Its Period”, Applied Mathematics and Computation, 232 (2014), 285-291
3. Engin Özkan and İpek Altun, “Generalized Lucas Polynomials and Relationships Between the Fibonacci Polynomials and Lucas Polynomials”, Communications in Algebra, 47 (2019), 10-12
4. Songul Celik, Inan Durukan and Engin Özkan, “New Recurrences on Pell Numbers, Pell-Lucas Numbers, Jacobsthal Numbers, And Jacobsthal-Lucas Numbers”, Chaos, Solitons and Fractals, 150 (2021), 111173
5. Engin Özkan, Bahar Kuloglu and James Peter, “k-Narayana sequence self-Similarity. flip graph views of k-Narayana self-Similarity”, Chaos, Solitons and Fractals, 153:2 (2021), 111473

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