Math @ Duke

Publications [#335607] of JianGuo Liu
Papers Published
 Gao, Y; Liu, JG; Lu, XY; Xu, X, Maximal monotone operator theory and its applications to thin film equation in epitaxial growth on vicinal surface,
Calculus of Variations and Partial Differential Equations, vol. 57 no. 2
(April, 2018), Springer Nature [doi]
(last updated on 2019/06/25)
Abstract: © 2018, SpringerVerlag GmbH Germany, part of Springer Nature. In this work we consider (Formula presented.) which is derived from a thin film equation for epitaxial growth on vicinal surface. We formulate the problem as the gradient flow of a suitablydefined convex functional in a nonreflexive space. Then by restricting it to a Hilbert space and proving the uniqueness of its subdifferential, we can apply the classical maximal monotone operator theory. The mathematical difficulty is due to the fact that w hh can appear as a positive Radon measure. We prove the existence of a global strong solution with hidden singularity. In particular, (1) holds almost everywhere when w hh is replaced by its absolutely continuous part.


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