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- W2981351270 abstract "We study the steady states and dynamics of a thin film-type equation with non-conserved mass in one dimension. The evolution equation is a nonlinear fourth-order degenerate parabolic PDE motivated by a model of volatile viscous fluid films allowing for condensation or evaporation. We show that by changing the sign of the non-conserved flux and breaking from a gradient flow structure, the problem can exhibit novel behaviors including having two distinct classes of coexisting steady state solutions. Detailed analysis of the bifurcation structure for these steady states and their stability reveal several possibilities for the dynamics. For some parameter regimes, solutions can lead to finite-time rupture singularities. Interestingly, we also show that a finite amplitude limit cycle can occur as a singular perturbation in the nearly-conserved limit." @default.
- W2981351270 created "2019-11-01" @default.
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- W2981351270 date "2019-03-16" @default.
- W2981351270 modified "2023-09-23" @default.
- W2981351270 title "Steady states and dynamics of a thin film-type equation with non-conserved mass" @default.
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- W2981351270 doi "https://doi.org/10.48550/arxiv.1903.06987" @default.
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