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Idempotent completions of operator partial matrices

✍ Scribed by Jinchuan Hou; Heydar Radjavi; Peter Rosenthal


Book ID
110608456
Publisher
Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society
Year
1999
Tongue
English
Weight
599 KB
Volume
15
Category
Article
ISSN
1439-7617

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Totally nonpositive completions on parti
✍ C. Mendes AraΓΊjo; Juan R. Torregrosa; Ana M. Urbano πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 183 KB

An n Γ— n real matrix is said to be totally nonpositive if every minor is nonpositive. In this paper, we are interested in totally nonpositive completion problems, that is, does a partial totally nonpositive matrix have a totally nonpositive matrix completion? This problem has, in general, a negative