Geodesic
On the Global Stability of Solutions of Moment Systems in Nonequilibrium Thermodynamics
Matematičeskie zametki, Tome 73 (2003) no. 4, pp. 590-602.

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In this paper, we study the linearization of the Cauchy problem and the mixed problem for the system of Grad–Hermite moments in nonequilibrium thermodynamics in the neighborhood of the equilibrium state. Stability conditions for solutions of the Cauchy problem are proved as a generalization of the classical Hermite–Biller theorem on stable polynomials. For the mixed problem, we prove an analog of the Vishik–Lyusternik theorem on small singular perturbations of general elliptic problems. The last observation allows us to introduce the Shapiro–Lopatinskii condition, which implies the well-posedness of the mixed problem. 
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E. V. Radkevich. On the Global Stability of Solutions of Moment Systems in Nonequilibrium Thermodynamics. Matematičeskie zametki, Tome 73 (2003) no. 4, pp. 590-602. http://geodesic.mathdoc.fr/item/MZM_2003_73_4_a10/

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