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In this article we consider cloaking for a quasi-linear elliptic partial differential equation of divergence type defined on a bounded domain in $\mathbb{R}^N$ for $N=2,3$. We show that a perfect cloak can be obtained via a singular change of variables scheme and an approximate cloak can be achieved via a regular change of variables scheme. These approximate cloaks though non-degenerate are anisotropic. We also show, within the framework of homogenization, that it is possible to get isotropic regular approximate cloaks. This work generalizes to quasi-linear settings previous work on cloaking in the context of Electrical Impedance Tomography for the conductivity equation.
Inverse problems, Homogenization, Inverse problems for PDEs, cloaking, inverse problems, homogenization, Cloaking, Homogenization in context of PDEs; PDEs in media with periodic structure, Mathematics - Analysis of PDEs, Quasilinear elliptic equations, FOS: Mathematics, Image processing (compression, reconstruction, etc.) in information and communication theory, quasilinear elliptic, Quasilinear elliptic, Analysis of PDEs (math.AP)
Inverse problems, Homogenization, Inverse problems for PDEs, cloaking, inverse problems, homogenization, Cloaking, Homogenization in context of PDEs; PDEs in media with periodic structure, Mathematics - Analysis of PDEs, Quasilinear elliptic equations, FOS: Mathematics, Image processing (compression, reconstruction, etc.) in information and communication theory, quasilinear elliptic, Quasilinear elliptic, Analysis of PDEs (math.AP)
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