What is it about?
Lilley and Phillips examine the determinant of a 2x2 tensor which relates two geophysical quantities.
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Why is it important?
In magnetotellurics three different tensors arise, and negative determinant values may indicate erroneous data.
Perspectives
At present a great deal of magnetotelluric data is being observed, worldwide. All analyses methods may be of value, especially where they can be implemented automatically.
Frederick Lilley
Australian National University
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This page is a summary of: A property of the determinant of a 2 × 2 tensor relevant to magnetotellurics, Geophysics, July 2018, Society of Exploration Geophysicists,
DOI: 10.1190/geo2017-0315.1.
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