Instability in large bounded domains—branched versus unbranched resonances
Instability in large bounded domains—branched versus unbranched resonances
复制标题
大有界域中的不稳定性——支化共振与非支化共振
DOI:
10.1088/1361-6544/ac2a15
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发表时间:
2021
期刊:
影响因子:
1.7
通讯作者:
Scheel, Arnd
中科院分区:
文献类型:
--
作者:
Avery, Montie;Dedina, Cedric;Smith, Aislinn;Scheel, Arnd
We study transitions from convective to absolute instability near a trivial state in large bounded domains for prototypical model problems in the presence of transport and negative nonlinear feedback. We identify two generic scenarios, depending on the nature of the linear mechanism for instability, which both lead to different, universal bifurcation diagrams. In the first, classical case of a linear branched resonance the transition is hard, that is, small changes in a control parameter lead to a finite-size state. In the second, novel case of an unbranched resonance, the transition is gradual. In both cases, the bifurcation diagram is determined by interaction of the leading edge of an invasion front with upstream boundary conditions. Technically, we analyze this interaction in a heteroclinic gluing bifurcation analysis that uses geometric desingularization of the trivial state.
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DOI:
10.1016/s0167-2789(97)00045-6
发表时间:
1997
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
A. Couairon;J. Chomaz
通讯作者:
J. Chomaz
DOI:
10.1090/cams/8
发表时间:
2022
期刊:
Communications of the American Mathematical Society
影响因子:
--
作者:
Avery, Montie;Scheel, Arnd
通讯作者:
Scheel, Arnd
影响因子:
1.1
作者:
Faye, Gregory;Holzer, Matt;Scheel, Arnd;Siemer, Lars
通讯作者:
Siemer, Lars
影响因子:
1.7
作者:
M. H. Köpf;U. Thiele
通讯作者:
U. Thiele
DOI:
10.1103/physreve.53.4764
发表时间:
1996
期刊:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子:
--
作者:
Büchel;Luecke;Roth;Schmitz
通讯作者:
Schmitz