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Remarks on $\Gamma$-Convergence of Penalized Functionals of Ginzburg-Landau Type in One Dimension (CROSBI ID 27326)

Prilog u knjizi | izvorni znanstveni rad

Raguž, Andrija Remarks on $\Gamma$-Convergence of Penalized Functionals of Ginzburg-Landau Type in One Dimension // Multiscale problems in science and technology / Antonić, Nenad ; van Duijn, C. J. ; Jäger, Willi et al. (ur.). Berlin: Springer, 2002. str. XII+306-x

Podaci o odgovornosti

Raguž, Andrija

engleski

Remarks on $\Gamma$-Convergence of Penalized Functionals of Ginzburg-Landau Type in One Dimension

In this note we study the Ginzburg-Landau functional $$ I^{\vep}(v):=\int_{\Omega} ({\vep}^2 v''(s)^2+W(v'(s))+a(s)(v(s)-g(s))^2)ds $$ for $v\in {\rm H}^2_{per}(\Omega)$. $\Omega\subseteq\R$ is a bounded open set, $a\in {\rm L}^{\infty}(\Omega)$, $a\geq\alpha>0$ and $g\in {\rm C}^{1}(\overline{\Omega})$, $|g'|<1$. $W$ is non-negative continuous function such that $W(\xi)=0$ iff $\xi\in\{-1, 1\}$. In view of the approach of Alberti and M\"uller in~\cite{raguzAM}, we formulate the relaxation and minimization problem related to the functional $I^{\vep}$ and we discuss the choice of relaxation and blowup procedure adjusted to capture two characteristic small scales associated to the minimizing sequences. Also, we prove $\Gamma$-convergence result for the integrands, and we highlight the idea of proof for $\Gamma$-convergence for integral functionals induced by the chosen relaxation.

$\Gamma$-Convergence, Ginzburg-Landau functional, relaxation

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Podaci o prilogu

XII+306-x.

objavljeno

Podaci o knjizi

Multiscale problems in science and technology

Antonić, Nenad ; van Duijn, C. J. ; Jäger, Willi ; Mikelić, Andro

Berlin: Springer

2002.

3-540-43584-0

Povezanost rada

Matematika