1. The order of appearance of factorials in the Fibonacci sequence and certain Diophantine equations

   • Prapanpong Pongsriiam

   OriginalPaper 20 October 2018 Pages: 141 - 156

2. x-Coordinates of Pell equations which are Tribonacci numbers II

   • Bir Kafle
   • Florian Luca
   • Alain Togbé

   OriginalPaper 27 October 2018 Pages: 157 - 167

3. Individual exponential stability for linear skew-products semiflows over a semiflow

   • Ciprian Preda
   • Petre Preda
   • Oana Romina Onofrei

   OriginalPaper 02 July 2019 Pages: 168 - 176

4. On the taxicab distance sum function and its applications in discrete tomography

   • Csaba Vincze

   OriginalPaper 17 December 2018 Pages: 177 - 190

   

5. Einstein–Weyl structures on almost cosymplectic manifolds

   • Xiaomin Chen

   OriginalPaper Open access 17 January 2019 Pages: 191 - 203

6. New relation formula for generating functions

   • Wathek Chammam

   OriginalPaper 22 June 2019 Pages: 204 - 209

7. On the Diophantine equation \(L_{n}-L_{m}=2\cdot 3^{a}\)

   • Bahar Demirtürk Bitim

   OriginalPaper 26 June 2019 Pages: 210 - 217

8. Representation of the elements of the finite field \({\mathbb {F}}_p\) by fractions

   • S. Louboutin
   • A. Murchio

   OriginalPaper 27 June 2019 Pages: 218 - 220

9. A note about maximal almost-invariant subspaces and maximal hyperinvariant subspaces

   • Cui Chen
   • Ze-Hua Zhou
   • Ya Wang

   OriginalPaper Open access 27 June 2019 Pages: 221 - 226

10. Proof of a conjecture on a congruence modulo 243 for overpartitions

    • Xiaoqian Huang
    • Olivia X. M. Yao

    OriginalPaper 29 June 2019 Pages: 227 - 235

11. On approximation by some Bernstein–Kantorovich exponential-type polynomials

    • Ali Aral
    • Diana Otrocol
    • Ioan Raşa

    OriginalPaper 29 June 2019 Pages: 236 - 254

12. Rational solutions of the Diophantine equations \(f(x)^2 \pm f(y)^2=z^2\)

    • Ahmed El Amine Youmbai
    • Djilali Behloul

    OriginalPaper 06 July 2019 Pages: 255 - 260