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  Bifurcations, chaos, and sensitivity to parameter variations in the Sato cardiac cell model.

Otte, S., Berg, S., Luther, S., & Parlitz, U. (2016). Bifurcations, chaos, and sensitivity to parameter variations in the Sato cardiac cell model. Communications in Nonlinear Science and Numerical Simulation, 37, 265-281. doi:10.1016/j.cnsns.2016.01.014.

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 Creators:
Otte, Stefan1, Author              
Berg, Sebastian1, Author              
Luther, Stefan1, Author              
Parlitz, Ulrich1, Author              
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1Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063288              

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Free keywords: Bifurcation analysis; Cardiac cell model; Early after depolarisations; Nonlinear dynamics
 Abstract: The dynamics of a detailed ionic cardiac cell model proposed by Sato et al. (2009) is investigated in terms of periodic and chaotic action potentials, bifurcation scenarios, and coexistence of attractors. Starting from the model’s standard parameter values bifurcation diagrams are computed to evaluate the model’s robustness with respect to (small) parameter changes. While for some parameters the dynamics turns out to be practically independent from their values, even minor changes of other parameters have a very strong impact and cause qualitative changes due to bifurcations or transitions to coexisting attractors. Implications of this lack of robustness are discussed.

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Language(s): eng - English
 Dates: 2016-01-282016-08
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.cnsns.2016.01.014
BibTex Citekey: otte_bifurcations_2016
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Title: Communications in Nonlinear Science and Numerical Simulation
Source Genre: Journal
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Pages: - Volume / Issue: 37 Sequence Number: - Start / End Page: 265 - 281 Identifier: ISSN: 1007-5704