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Kinematical structural stability

Abstract : This paper gives an overview of our results obtained from 2009 until 2014 about paradoxical stability properties of non conservative systems which lead to the concept of Kinematical Structural Stability (Ki.s.s.). Due to Fischer-Courant results, this ki.s.s. is universal for conservative systems whereas new interesting situations may arise for non conservative ones. A remarkable algebraic property of the symmetric part of linear operators may generalize this result for divergence stability but leading only to a conditional ki.s.s. By duality, the concept of geometric degree of nonconservativity is highlighting. Paradigmatic examples of Ziegler systems illustrate the general results and their effectiveness.
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Contributor : Frédéric Davesne <>
Submitted on : Thursday, May 26, 2016 - 3:19:17 PM
Last modification on : Friday, November 20, 2020 - 12:54:03 PM

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Jean Lerbet, Noël Challamel, François Nicot, Félix Darve. Kinematical structural stability. Discrete and Continuous Dynamical Systems - Series S, American Institute of Mathematical Sciences, 2016, 9 (2), pp.529--536. ⟨10.3934/dcdss.2016010⟩. ⟨hal-01321988⟩



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