Local Minimizers of the Ginzburg-Landau Functional with Prescribed Degrees

Details Local Minimizers of the Ginzburg-Landau Functional with Prescribed Degrees Local Minimizers of the Ginzburg-Landau Functional with Prescribed Degrees

2011-11-07

arxiv.org/abs/1111.1571v1

Journal of Functional Analysis 257 (2009) 1053-1091

Mathematics

Analysis of PDEs

Scientific paper

We consider, in a smooth bounded multiply connected domain $\dom\subset\R^2$, the Ginzburg-Landau energy $\d E_\v(u)=1/2\int_\dom{|\n u|^2}+\frac{1}{4\v^2}\int_\dom{(1-|u|^2)^2}$ subject to prescribed degree conditions on each component of $\p\dom$. In general, minimal energy maps do not exist \cite{BeMi1}. When $\dom$ has a single hole, Berlyand and Rybalko \cite{BeRy1} proved that for small $\v$ local minimizers do exist. We extend the result in \cite{BeRy1}: $\d E_\v(u)$ has, in domains $\dom$ with $2,3,...$ holes and for small $\v$, local minimizers. Our approach is very similar to the one in \cite{BeRy1}; the main difference stems in the construction of test functions with energy control.

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