Bifurcation analysis and chaos control of simple chemostat model with discrete time


LAFCI BÜYÜKKAHRAMAN M.

Annals of Mathematical Sciences and Applications, cilt.10, sa.1, ss.39-59, 2025 (ESCI, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 1
  • Basım Tarihi: 2025
  • Doi Numarası: 10.4310/amsa.250305060812
  • Dergi Adı: Annals of Mathematical Sciences and Applications
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.39-59
  • Anahtar Kelimeler: chaos control, Chemostat model, flip bifurcation, stability
  • Uşak Üniversitesi Adresli: Evet

Özet

The discrete-time chemostat model’s behaviors are intriguing. The model under consideration was created using the forward Euler method from a continuous-time population model. First, we start by identifying the model’s fixed points. By conducting a local stability analysis for each fixed point independently, we determine the system’s dynamic behavior. The central manifold theorem and bifurcation theory are then used to show that flip bifurcation occurs. In bifurcation analysis, the integral step size is used as a bifurcation parameter. The flip bifurcation embedded in the complex attractor is stabilized by a hybrid control approach. The viability of theoretical analysis is confirmed by numerical simulation, which shows some interesting and novel behavioral dynamics.