Abstract
Totally positive matrices are matrices with all their minors nonnegative and have important applications in many fields. We review tests to recognize if a given matrix belongs to this class of matrices or to some related classes. Several applications are presented, including the relationship of these tests with the construction of algorithms for the computation with totally positive matrices to high relative accuracy.
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Research partially supported the Spanish Research Grant MTM2012-31544 and by Gobierno de Aragón and Fondo Social Europeo.
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Peña, J.M. Tests for the recognition of total positivity. SeMA 62, 61–73 (2013). https://doi.org/10.1007/s40324-013-0008-z
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DOI: https://doi.org/10.1007/s40324-013-0008-z
Keywords
- Total positivity
- Neville elimination
- Totally positive matrices
- Sign regular matrices
- Accurate computations