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Journal Articles Discontinuity, Nonlinearity, and Complexity Year : 2016

Perspectives on Multi-Level Dynamics


As Physics did in previous centuries, there is currently a common dream of extracting generic laws of nature in economics, sociology, neuroscience, by focalising the description of phenomena to a minimal set of variables and parameters, linked together by causal equations of evolution whose structure may reveal hidden principles. This requires a huge reduction of dimensionality (number of degrees of freedom) and a change in the level of description. Beyond the mere necessity of developing accurate techniques affording this reduction, there is the question of the correspondence between the initial system and the reduced one. In this paper, we offer a perspective towards a common framework for discussing and understanding multi-level systems exhibiting structures at various spatial and temporal levels. We propose a common foundation and illustrate it with examples from different fields. We also point out the difficulties in constructing such a general setting and its limitations.
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Dates and versions

hal-01387733 , version 1 (26-10-2016)



Fatihcan M Atay, Sven Banisch, Philippe Blanchard, Bruno Cessac, Eckehard Olbrich. Perspectives on Multi-Level Dynamics. Discontinuity, Nonlinearity, and Complexity, 2016, 5, pp.313 - 339. ⟨10.5890/DNC.2016.09.009⟩. ⟨hal-01387733⟩
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