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Preserving diagonalisability on upper triangular matrices |
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| Authors: | Damjan Kobal |
| Affiliation: | a Department of Mathematics, University of Ljubljana, 1000 Ljubljana, Slovenia |
| Abstract: | We characterise all bijective linear mappings on the algebra of upper triangular n × n matrices that preserve diagonalisability. |
| Keywords: | Linear preserver Diagonalisable matrix Triangular matrices Mathematics Subject Classification: 15A04 |
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