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On Detecting the Shape of an Unknown Object in an Electric Field

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Jukka-Pekka Humaloja - Speaker

The problem discussed in this paper is detecting the shape of an unknown object in a 2-dimensional static electric field. For simplicity, the problem is defined in a partially rectangular domain, where on a part of the boundary the potential and/or its normal derivative are known. On the other part of the boundary the boundary curve is unknown, and this curve is to be determined. The unknown part of the boundary curve describes the shape of the unknown object. The problem is defined in the complex plane by an analytic function w=f(z) = u(x,y)+iv(x,y) with the potential u as its real part. Then the inverse function is given as f^{-1}(w) = x(u,v)+iy(u,v), where the functions x and y are harmonic in a rectangle with an unknown boundary condition on one boundary. The alternating-field technique is used to solve the unknown boundary condition.
12 Jun 2014

Event (Conference)

TitleECMI 2014, 18th European Conference on Mathematics in Industry, 9.-13.6.2014, Taormina - Sicily, Italy
Period1/01/14 → …

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