| Title: | A note on star partial order preservers on the set of all variance-covariance matrices |
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| Authors: | ID Dolinar, Gregor (Author)
ID Kuzma, Bojan (Author)
ID Marovt, Janko (Author)
ID Mosić, Dijana (Author) |
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| Files: |  RAZ_Dolinar_Gregor_2023.pdf (416,13 KB)
MD5: E845AB9DA16A2C3206FCE0F914B1D04E
 https://www.degruyter.com/document/doi/10.1515/ms-2023-0022/html
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | EPF - Faculty of Business and Economics
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| Abstract: | Let ▫$H_n^+(\mathbb{R})$▫ be the cone of all positive semidefinite ▫$n \times n$▫ real matrices. We describe the form of all surjective maps on ▫$H_n^+(\mathbb{R})$▫, ▫$n=3$▫, that preserve the star partial order in both directions. |
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| Keywords: | preserver, star partial order, linear model, variance-covariance matrix |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2023 |
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| Number of pages: | str. 263-273 |
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| Numbering: | Vol. 73, no. 1 |
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| PID: | 20.500.12556/DKUM-84632  |
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| UDC: | 512.643:517.983 |
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| ISSN on article: | 0139-9918 |
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| COBISS.SI-ID: | 143109123 |
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| DOI: | 10.1515/ms-2023-0022 |
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| Publication date in DKUM: | 10.07.2023 |
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| Views: | 752 |
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| Downloads: | 35 |
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| Metadata: |    |
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| Categories: | Misc.
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