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JOURNALS // Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika // Archive

Vestnik Chelyabinsk. Gos. Univ., 2008 Issue 10, Pages 75–88 (Mi vchgu97)

Differential equations

Dynamical system for BCF model describing crystal surface growth

H. Fujimura, A. Yagi

Osaka University, Japan

Abstract: This paper treats the initial-boundary value problem for a nonlinear parabolic equation of forth order which was presented by Johnson — Orme — Hunt — Graff — Sudijono — Sauder — Orr [1] in order to describe the interesting phenomena of crystal surface growth under molecular beam epitaxy (MBE). First we construct unique local solutions in a suitable function space by applying the techniques of abstract parabolic evolution equations. Second we establish a priori estimates to obtain the global existence of solutions. Our goal is then to construct a dynamical system determined from the initial-boundary value problem of the model equation.

Keywords: Dynamical system, BCF model, semilinear parabolic equation, a priori estimate.

Language: English



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