Relaxation of Ginzburg-Landau functional perturbed by nonlinear lower-order term in one dimension (CROSBI ID 255905)
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Raguž, Andrija
engleski
Relaxation of Ginzburg-Landau functional perturbed by nonlinear lower-order term in one dimension
We study the asymptotic behavior as ε → 0 of the Ginzburg–Landau functional , where A(s, v, v′) is the nonlinear lower-order term generated by certain Carathéodory function a : (0, 1)2 × R2 → R. We obtain Γ-convergence for the rescaled functionals as ε → 0 by using the notion of Young measures on micropatterns, which was introduced in 2001 by Alberti and Müller. We prove that for ε ≈ 0 the minimal value of is close to , where A∞(s) : = ½A(s, 0, -1) + ½A(s, 0, 1) and where E0 depends only on W. Further, we use this example to establish some general conclusions related to the approach of Alberti and Müller.
Asymptotic analysis ; Young measures ; Ginzburg–Landau functional ; gamma convergence
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