Defect-like structures and localized patterns in SH 357
Defect-like structures and localized patterns in SH 357
复制标题
SH 357 中的缺陷状结构和局部模式
DOI:
--
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Daniel Wetzel
中科院分区:
文献类型:
--
作者:
E. Knobloch;H. Uecker;Daniel Wetzel
We study numerically the cubic-quintic-septic Swift-Hohenberg (SH357) equation on bounded one-dimensional domains. Under appropriate conditions stripes with wave number k ≈ 1 bifurcate supercritically from the zero state and form S-shaped branches resulting in bistability between small and large amplitude stripes. Within this bistability range we find stationary heteroclinic connections or fronts between small and large amplitude stripes, and demonstrate that the associated spatially localized defect-like structures either snake or fall on isolas. In other parameter regimes we also find heteroclinic connections to spatially homogeneous states, and a multitude of dynamically stable steady states consisting of patches of small and large amplitude stripes with different wave numbers or of spatially homogeneous patches. The SH357 equation is thus extremely rich in the types of patterns it exhibits. Some of the features of the bifurcation diagrams obtained by numerical continuation can be understood using a conserved quantity, the spatial Hamiltonian of the system.
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影响因子:
2.1
作者:
Bramburger, Jason J.;Altschuler, Dylan;Avery, Chloe I.;Sangsawang, Tharathep;Beck, Margaret;Carter, Paul;Sandstede, Björn
通讯作者:
Sandstede, Björn
DOI:
10.3934/mbe.2015004
发表时间:
2016
期刊:
Mathematical biosciences and engineering : MBE
影响因子:
--
作者:
D. Wetzel
通讯作者:
D. Wetzel
影响因子:
2.1
作者:
Avitabile, Daniele;Lloyd, David J. B.;Sandstede, Bjoern
通讯作者:
Sandstede, Bjoern
DOI:
10.1016/j.physd.2020.132383
发表时间:
2019
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
H. Uecker;D. Wetzel
通讯作者:
D. Wetzel
DOI:
10.1103/physreve.97.062221
发表时间:
2018
期刊:
Physical review. E
影响因子:
--
作者:
D. Wetzel
通讯作者:
D. Wetzel