Abstract
We consider the problem of describing the form of biderivations of a triangular ring. Our approach is based on the notion of the maximal left ring of quotients, which enables us to generalize Benkovič’s result on biderivations (Benkovič in Linear Algebra Appl 431:1587–1602, 2009). Our result is applied to block upper triangular matrix rings and nest algebras.
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Acknowledgements
The author is thankful to his colleague Professor Dominik Benkovič for some useful suggestions regarding Sect. 4.
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Communicated by Kar Ping Shum.
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Eremita, D. Biderivations of Triangular Rings Revisited. Bull. Malays. Math. Sci. Soc. 40, 505–522 (2017). https://doi.org/10.1007/s40840-017-0451-6
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DOI: https://doi.org/10.1007/s40840-017-0451-6
Keywords
- Biderivation
- Derivation
- Triangular ring
- Upper triangular matrix ring
- Nest algebra
- Maximal left ring of quotients
- Utumi left quotient ring
- Extended centroid