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    On the inverse gravimetry problem with minimal data

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    abstract (74.16Kb)
    Date
    2021-04-02
    Author
    Titi, Aseel
    Advisor
    Isakov, Victor
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    Citation
    Titi, A. 2021. On the inverse gravimetry problem with minimal data -- In Proceedings: 17th Annual Symposium on Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University
    Abstract
    The inverse problem in gravimetry is to find a domain D inside the reference domain Ω from measurements of gravitational force outside Ω. We first considered the two-dimensional case where we found that about five parameters of the unknown D can be stably determined given data noise in practical situations. An ellipse is uniquely determined by five parameters. We proved uniqueness and stability of recovering an ellipse for the inverse problem from minimal amount of data which are the gravitational force at three boundary points. In the proofs we derived and used simple systems of linear and nonlinear algebraic equations for natural parameters of an ellipse. To illustrate the technique we used these equations in numerical examples with various location of measurements points on the boundary of Ω. We also considered the problem in three dimensions where we proved uniqueness for an ellipsoid in some particular cases.
    Description
    Presented to the 17th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held online, Wichita State University, April 2, 2021.

    Research completed in the Department of Mathematics, Statistics and Physics, Fairmount College of Liberal Arts and Sciences
    URI
    https://soar.wichita.edu/handle/10057/19965
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    • MATH Graduate Student Conference Papers
    • Proceedings 2021: 17th Annual Symposium on Graduate Research and Scholarly Projects

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