On the stability of equilibrium states of the dynamical systems in critical cases

2021 ◽  
Vol 569 ◽  
pp. 125787
Author(s):  
Alexandr A. Barsuk ◽  
Florentin Paladi
1975 ◽  
Vol 16 (6) ◽  
pp. 1284-1287 ◽  
Author(s):  
Joel L. Lebowitz ◽  
Michael Aizemann ◽  
Sheldon Goldstein

Author(s):  
Albert C. J. Luo

This paper presents a theory of the stability of equilibrium in dynamical systems. The measuring function is introduced through a relative distance function. The kth -order, G – functions at the equi-measuring function surface and the increment of the equi-measuring function are introduced. Based on the kth -order, G – functions, a theory for the stability of dynamical system is presented, including the definitions and theorems.


2004 ◽  
Vol 14 (09) ◽  
pp. 1361-1399 ◽  
Author(s):  
V. GIOVANGIGLI ◽  
B. GRAILLE

We investigate a system of partial differential equations modeling ambipolar plasmas. The ambipolar — or zero current — model is obtained from general plasmas equations in the limit of vanishing Debye length. In this model, the electric field is expressed as a linear combination of macroscopic variable gradients. We establish that the governing equations can be written as a symmetric form by using entropic variables. The corresponding dissipation matrices satisfy the null space invariant property and the system of partial differential equations can be written as a normal form, i.e. in the form of a symmetric hyperbolic–parabolic composite system. By properly modifying the chemistry source terms and/or the diffusion matrices, asymptotic stability of equilibrium states is established and decay estimates are obtained. We also establish the continuous dependence of global solutions with respect to vanishing electron mass.


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