Abstract
We find solutions \({E : \Omega \to \mathbb{R}^3}\) of the problem
on a simply connected, smooth, bounded domain \({\Omega \subset \mathbb{R}^3}\) with connected boundary and exterior normal \({\nu : \partial \Omega \to \mathbb{R}^3}\). Here \({\nabla \times}\) denotes the curl operator in \({\mathbb{R}^3}\), the nonlinearity \({F : \Omega \times \mathbb{R}^3 \to \mathbb{R}}\) is superquadratic and subcritical in E. The model nonlinearity is of the form \({F(x, E)=\Gamma(x) |E|^p}\) for \({\Gamma \in L^\infty(\Omega)}\) positive, some 2 < p < 6. It need not be radial nor even in the E-variable. The problem comes from the time-harmonic Maxwell equations, the boundary conditions are those for Ω surrounded by a perfect conductor.
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Bartsch, T., Mederski, J. Ground and Bound State Solutions of Semilinear Time-Harmonic Maxwell Equations in a Bounded Domain. Arch Rational Mech Anal 215, 283–306 (2015). https://doi.org/10.1007/s00205-014-0778-1
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DOI: https://doi.org/10.1007/s00205-014-0778-1