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Issue Date | Title | Author(s) | Type | Access | |
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1 | 1-Jan-2015 | Computing the numerical range of Krein space operators | Bebiano, Natália ; Providência, João da ; Nata, Ana ; Providência, J. P. da. | article | embargoedAccess |
2 | 2008 | The J-numerical range of a J-Hermitian matrix and related inequalities | Nakazato, Hiroshi ; Bebiano, Natália ; Providência, João da | article | openAccess |