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- W4286899663 abstract "We consider a one-dimensional Swift-Hohenberg equation coupled to a conservation law, where both equations contain additional dispersive terms breaking the reflection symmetry $x mapsto -x$. This system exhibits a Turing instability and we study the dynamics close to the onset of this instability. First, we show that periodic traveling waves bifurcate from a homogeneous ground state. Second, fixing the bifurcation parameter close to the onset of instability, we construct modulating traveling fronts, which capture the process of pattern-formation by modeling the transition from the homogeneous ground state to the periodic traveling wave through an invading front. The existence proof is based on center manifold reduction to a finite-dimensional system. Here, the dimension of the center manifold depends on the relation between the spreading speed of the invading modulating front and the linear group velocities of the system. Due to the broken reflection symmetry, the coefficients in the reduced equation are genuinely complex. Therefore, the main challenge is the construction of persistent heteroclinic connections on the center manifold, which correspond to modulating traveling fronts in the full system." @default.
- W4286899663 created "2022-07-25" @default.
- W4286899663 creator A5022828951 @default.
- W4286899663 date "2021-10-20" @default.
- W4286899663 modified "2023-09-29" @default.
- W4286899663 title "Modulating traveling fronts in a dispersive Swift-Hohenberg equation coupled to an additional conservation law" @default.
- W4286899663 doi "https://doi.org/10.48550/arxiv.2110.10715" @default.
- W4286899663 hasPublicationYear "2021" @default.
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