Abstract
In this chapter, we consider the simplified GRN model, with the assumption that it is under delayed negative feedback. By analyzing the fixed points of a single function determined from the nonlinear connections, we show that in this case the system has a unique equilibrium point in the positive cone. Then, delay independent global stability, and instability, conditions are derived. For a delay dependent stability condition the secant condition is extended to cover systems with time delays. Special stability conditions are derived for homogenous GRNs where nonlinearities are Hill functions.
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Ahsen, M.E., Özbay, H., Niculescu, SI. (2015). Gene Regulatory Networks Under Negative Feedback. In: Analysis of Deterministic Cyclic Gene Regulatory Network Models with Delays. SpringerBriefs in Electrical and Computer Engineering(). Birkhäuser, Cham. https://doi.org/10.1007/978-3-319-15606-4_5
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DOI: https://doi.org/10.1007/978-3-319-15606-4_5
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