P. Mironescu, LOCAL MINIMIZERS FOR THE GINZBURG-LANDAU EQUATION ARE RADIALLY SYMMETRICAL, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 323(6), 1996, pp. 593-598
We consider the equation -Delta u = u(1 - \u\(2)) in R(2). We prove th
at local minimizers (in the sense of [8]) are radial. We find sufficie
nt conditions for the radial symmetry of other solutions.