Papers › Method of Green's potentials for elliptic PDEs in domains with random apertures
Method of Green's potentials for elliptic PDEs in domains with random apertures
Viktor Reshniak, Yuri Melnikov
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Problems with topological uncertainties appear in many fields ranging from nano-device engineering to the design of bridges. In many of such problems, a part of the domains boundaries is subjected to random perturbations making inefficient conventional schemes that rely on discretization of the whole domain. In this paper, we study elliptic PDEs in domains with boundaries comprised of a deterministic part and random apertures, and apply the method of modified potentials with Green's kernels defined on the deterministic part of the domain. This approach allows to reduce the dimension of the original differential problem by reformulating it as a boundary integral equation posed on the random apertures only. The multilevel Monte Carlo method is then applied to this modified integral equation and its optimal ϵ⁻² asymptotical complexity is shown. Finally, we provide the qualitative analysis of the proposed technique and support it with numerical results.
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