Journals / Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics / 2026 / Volume: 71 Issue: 1

On a nonlinear fuzzy difference equation

İbrahim Yalçınkaya(Necmettin Erbakan University)0000-0003-4546-4493
Vildan Çalışkan(Necmettin Erbakan University)0000-0003-4763-1689
Durhasan Turgut Tollu(Necmettin Erbakan University)0000-0002-3313-8829
Pages
—
Publication Date
2022-03-30
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this paper we investigate the existence, the boundedness and the asymptotic behavior of the positive solutions of the fuzzy difference equation \[z_{n+1}=\dfrac{Az_{n-1}}{1+z_{n-2}^{p}},~n\in\mathbb{N}_{0}\] where ( z n ) (zn) is a sequence of positive fuzzy numbers, A A and the initial conditions z − j z−j ( j = 0 , 1 , 2 ) (j=0,1,2) are positive fuzzy numbers and p p is a positive integer.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this paper we investigate the existence, the boundedness and the asymptotic behavior of the positive solutions of the fuzzy difference equation \[z_{n+1}=\dfrac{Az_{n-1}}{1+z_{n-2}^{p}},~n\in\mathbb{N}_{0}\] where ( z n ) (zn) is a sequence of positive fuzzy numbers, A A and the initial conditions z − j z−j ( j = 0 , 1 , 2 ) (j=0,1,2) are positive fuzzy numbers and p p is a positive integer.
📊
Key Findings & Data:In this paper we investigate the existence, the boundedness and the asymptotic behavior of the positive solutions of the fuzzy difference equation \[z_{n+1}=\dfrac{Az_{n-1}}{1+z_{n-2}^{p}},~n\in\mathbb{N}_{0}\] where ( z n ) (zn) is a sequence of positive fuzzy numbers, A A and the initial conditions z − j z−j ( j = 0 , 1 , 2 ) (j=0,1,2) are positive fuzzy numbers and p p is a positive integer.
💡
Conclusion & Impact:In this paper we investigate the existence, the boundedness and the asymptotic behavior of the positive solutions of the fuzzy difference equation \[z_{n+1}=\dfrac{Az_{n-1}}{1+z_{n-2}^{p}},~n\in\mathbb{N}_{0}\] where ( z n ) (zn) is a sequence of positive fuzzy numbers, A A and the initial conditions z − j z−j ( j = 0 , 1 , 2 ) (j=0,1,2) are positive fuzzy numbers and p p is a positive integer.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Asymptotic behavior · $\alpha -$cuts · boundedness

Abstract

In this paper we investigate the existence, the boundedness and the asymptotic behavior of the positive solutions of the fuzzy difference equation \[z_{n+1}=\dfrac{Az_{n-1}}{1+z_{n-2}^{p}},~n\in\mathbb{N}_{0}\] where ( z n ) (zn) is a sequence of positive fuzzy numbers, A A and the initial conditions z − j z−j ( j = 0 , 1 , 2 ) (j=0,1,2) are positive fuzzy numbers and p p is a positive integer.

🔖

Cite This Article

Yalçınkaya, İ., Çalışkan, V., Tollu, D. T. (2022). On a nonlinear fuzzy difference equation. Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics, Volume: 71 Issue: 1. https://doi.org/10.31801/cfsuasmas.861915

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (17)

  1. Bede, B., Mathematics of Fuzzy Sets and Fuzzy Logic, Springer, New York, 2013.
  2. Chrysafis, K. A., Papadopoulos, B. K., Papaschinopoulos, G., On the fuzzy difference equations of finance, Fuzzy Sets Syst., 159 (2008), 3259–3270. https://doi:10.1016/j.fss.2008.06.007
  3. Deeba, E., De Korvin, A., Koh, E. L., A fuzzy difference equation with an application, J. Differ. Equ. Appl., 2 (1996), 365–374. https://doi.org/10.1080/10236199608808071
  4. Deeba, E., De Korvin, A., Analysis by fuzzy difference equations of a model of CO2 level in blood, Appl. Math. Lett., 12 (1999), 33–40. https://doi.org/10.1016/S0893-9659(98)00168-2
  5. El-Owaidy, H. M., Ahmed, A. M., Youssef, A. M., The dynamics of the recursive sequence $x_{n+1}=(\alpha x_{n-1})/(\beta +\gamma x_{n-2}^{p})$, Appl. Math. Lett., 18(9) (2005), 1013-1018. https://doi.org/10.1016/j.aml.2003.09.014
  6. Elsayed, E. M., On the solutions and periodic nature of some systems of difference equations, Int. J. Biomath., 7 (2014), 26 pages. https://doi.org/10.1142/S1793524514500673
  7. Gumus, M., Soykan, Y., Global character of a six-dimensional nonlinear system of difference equations, Discrete Dyn. Nat. Soc., Article ID 6842521 (2016), 7 pages. https://doi.org/10.1155/2016/6842521
  8. Klir, G., Yuan, B., Fuzzy Sets and Fuzzy Logic Theory and Applications, Prentice Hall, New Jersey, 1995.
  9. Hatir, E., Mansour, T., Yalcinkaya, I., On a fuzzy difference equation, Util. Math., 93 (2014), 135-151.
  10. Negoita, C. V., Ralescu, D., Applications of Fuzzy Sets to Systems Analysis, Birkhauser, Verlag, Besel, 1975.
  11. Papaschinopoulos, G., Papadopoulos, B. K., On the fuzzy difference equation $x_{n+1}=A+B/x_{n}$, Soft Comput., 6 (2002), 456-461. https://doi.org/10.1007/s00500-001-0161-7
  12. Papaschinopoulos, G., Papadopoulos, B. K., On the fuzzy difference equation $x_{n+1}=A+x_{n}/x_{n-m}$, Fuzzy Sets Syst., 129 (2002), 73-81. https://doi.org/10.1016/S0165- 0114(01)00198-1
  13. Stefanidou, G., Papaschinopoulos, G., A fuzzy difference equation of a rational form, J. Nonlinear Math. Phys., 12 (2005), 300–315. https://doi.org/10.2991/jnmp.2005.12.s2.21
  14. Pielou, E. C., Population and Community Ecology: Principles and Methods, CRC Press, London, 1974.
  15. Popov, E. P., Automatic Regulation and Control, (Russian) Nauka, Moscow, 1966.
  16. Wu, C., Zhang, B., Embedding problem of noncompact fuzzy number space $E^{∼}$, Fuzzy Sets Syst., 105 (1999), 165-169. https://doi.org/10.1016/S0165-0114(97)00218-2
  17. Yalcinkaya, I., Atak, N., Tollu, D. T., On a third-order fuzzy difference equation, J. Prime Res. Math., 17(1) (2021), 59-69. http://jprm.sms.edu.pk/on-a-third-order-fuzzy-difference equation.