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Depth of almost strictly sign regular matrices |
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| Authors: | Pedro Alonso Jorge Jiménez Juan Manuel Peña María Luisa Serrano |
| Affiliation: | 1. Department of Mathematics, University of Oviedo, Oviedo, Spain;2. Department of Applied Mathematics, University of Zaragoza, Zaragoza, Spain |
| Abstract: | The concept of depth of an almost strictly sign regular matrix is introduced and used to simplify some algorithmic characterizations of these matrices. |
| Keywords: | almost strictly sign regular matrices depth characterization Neville elimination |