Oblique and Checkerboard Patterns in the Quenched Cahn–Hilliard Model
Oblique and Checkerboard Patterns in the Quenched Cahn–Hilliard Model
复制标题
淬火 Cahn-Hilliard 模型中的倾斜和棋盘图案
DOI:
10.1007/s10884-023-10262-6
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发表时间:
2023
影响因子:
1.3
通讯作者:
Hosek, Ben
中科院分区:
文献类型:
--
作者:
Goh, Ryan;Hosek, Ben
We consider transversely modulated fronts in a directionally quenched Cahn–Hilliard equation, posed on a two-dimensional infinite channel, with both parameter and source-term type heterogeneities. Such quenching heterogeneities travel through the domain, excite instabilities, and can select the pattern formed in their wake. We in particular study striped patterns which are oblique to the quenching direction as well as checkerboard type patterns. Under generic spectral assumptions, these patterns arise via anO(2)-Hopf bifurcation as the quenching speed is varied, with symmetries arising from translations and reflections in the transverse variable. We employ an abstract functional analytic approach to establish such patterns near the bifurcation point. Exponential weights are used to address neutral continuous spectrum, and a co-domain restriction is used to address neutral mass-flux. We also give a method to determine the direction of bifurcation of fronts. We then give an explicit example for which our hypotheses are satisfied and for which bifurcating fronts can be investigated numerically.
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DOI:
10.1112/jlms.12122
发表时间:
2017
期刊:
Journal of the London Mathematical Society
影响因子:
--
作者:
Ryan N. Goh;A. Scheel
通讯作者:
A. Scheel
影响因子:
1.7
作者:
W. Arendt;Shangquan Bu
通讯作者:
Shangquan Bu
影响因子:
1.7
作者:
Ryan N. Goh;A. Scheel
通讯作者:
A. Scheel
影响因子:
3
作者:
Rafael Monteiro;A. Scheel
通讯作者:
A. Scheel
影响因子:
2.4
作者:
Krekhov, Alexei
通讯作者:
Krekhov, Alexei