2019
DOI: 10.20537/2226-3594-2019-53-09
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Construction of a solution to a velocity problem in the case of violation of the smoothness of the curvature of the target set boundary

Abstract: All Russian mathematical portal P. D. Lebedev, A. A. Uspenskii, Construction of a solution to a velocity problem in the case of violation of the smoothness of the curvature of the target set boundary, Известия Института математики и информатики Удмуртского государственного университета 2019. Том 53 УДК 517.977 c П. Д. Лебедев, А. А. Успенский ПОСТРОЕНИЕ РЕШЕНИЯ ЗАДАЧИ УПРАВЛЕНИЯ ПО БЫСТРОДЕЙСТВИЮ ПРИ НАРУШЕНИИ ГЛАДКОСТИ КРИВИЗНЫ ГРАНИЦЫ ЦЕЛЕВОГО МНОЖЕСТВА В развитие аналитических и численных алгоритмов построе… Show more

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“…In this context, glasses were seen as homogeneous liquids that have become dynamically arrested by the divergence of the structural relaxation time τ and of the viscosity η supposed proportional to it. While a uniformly disordered scenario remains a useful starting point, a century-long [4,5] controversy has been in existence as to whether a more appropriate heterogeneitybased scenario should replace the homogeneous one for the accurate modelling of real glasses and amorphous films. After all, for glass-forming liquids, the present consensus is that dynamic heterogeneities characterise the supercooledliquid state [6].…”
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confidence: 99%
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“…In this context, glasses were seen as homogeneous liquids that have become dynamically arrested by the divergence of the structural relaxation time τ and of the viscosity η supposed proportional to it. While a uniformly disordered scenario remains a useful starting point, a century-long [4,5] controversy has been in existence as to whether a more appropriate heterogeneitybased scenario should replace the homogeneous one for the accurate modelling of real glasses and amorphous films. After all, for glass-forming liquids, the present consensus is that dynamic heterogeneities characterise the supercooledliquid state [6].…”
mentioning
confidence: 99%
“…It is the purpose of this article to outline the recent advances that have led to such an alternative scenario, which is a deeply revised edition of the old "crystallite" model of glasses [4,5] implementing knowledge about the supercooled state [6]. In no way do we wish to contribute to the 100-years old [4] homogeneous-network/crystallite controversy [5]; we argue that the heterogeneous scenario holds -when needed-a better chance for explaining experiments and simulations on real glassy systems.…”
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confidence: 99%
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