Existence of a traveling wave solution in a free interface problem with fractional order kinetics
Existence of a traveling wave solution in a free interface problem with fractional order kinetics
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分数阶动力学自由界面问题行波解的存在性
DOI:
10.1016/j.jde.2021.01.034
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发表时间:
2020-10
影响因子:
2.4
通讯作者:
Zhang Linwan
中科院分区:
文献类型:
--
作者:
Brauner Claude-Michel;Roussarie Robert;Shang Peipei;Zhang Linwan
In this paper we consider a system of two reaction-diffusion equations that models diffusional-thermal combustion with stepwise ignition-temperature kinetics and fractional reaction order 0< α< 1. We turn the free interface problem into a scalar free boundary problem coupled with an integral equation. The main intermediary step is to reduce the scalar problem to the study of a non-Lipschitz vector field in dimension 2. The latter is treated by qualitative topological methods based on the Poincaré-Bendixson Theorem. The phase portrait is determined and the existence of a stable manifold at the origin is proved. A significant result is that the settling time to reach the origin is finite, meaning that the trailing interface is finite in contrast to the case α= 1, but in accordance with α= 0. Finally, the integro-differential system is solved via a fixed-point method.
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DOI:
10.2307/3614217
发表时间:
1968-10
期刊:
The Mathematical Gazette
影响因子:
--
作者:
F. Smithies;I. G. Petrovski;Richard A. Silverman
通讯作者:
F. Smithies;I. G. Petrovski;Richard A. Silverman
影响因子:
1
作者:
N. Bhatia;A. Lazer;W. Leighton
通讯作者:
N. Bhatia;A. Lazer;W. Leighton
影响因子:
1.8
作者:
Y. N. Dowker;F. G. Friedlander
通讯作者:
Y. N. Dowker;F. G. Friedlander
影响因子:
1.3
作者:
C. Brauner;P. Gordon;Wen Zhang
通讯作者:
C. Brauner;P. Gordon;Wen Zhang
DOI:
10.1002/9780470226773.ch22
发表时间:
1999-06
期刊:
Applied Numerical Methods Using Matlab®
影响因子:
--
作者:
Bernd S. W. Schröder
通讯作者:
Bernd S. W. Schröder