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Elena Akimova

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Author: Elena Akimovaclear all
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
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GRADIENT METHOD WITH PRECONDITIONER FOR SOLVING NONLINEAR INVERSE GRAVIMETRY PROBLEM

(STEF92 Technology, 2017-06-20, Elena Akimova, Vladimir Misilov)

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The most important geophysical problem is the inverse gravimetry problem. The problem is in finding an interface between two layers with different densities using known gravitational data. This problem is described by a nonlinear integral Fredholm equation of the first kind; so it is ill-posed. After the discretization of the integral operator, the problem is reduced to solving a system of nonlinear equation. For large grids, it is necessary to develop parallel algorithms for multiprocessor computing systems. To s...

Ecology and Environmental Protection2017
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