Physics – Mathematical Physics
Scientific paper
1999-07-19
El. J. Lin. Alg. 7, 100-111 (2000)
Physics
Mathematical Physics
12 pages, AMS-TeX
Scientific paper
The determinant for complex matrices cannot be extended to quaternionic matrices. Instead, the Study determinant and the closely related $q$-determinant are widely used. We show that the Study determinant can be characterized as the unique functional which extends the {\em absolute value} of the complex determinant and discuss its spectral and linear algebraic aspects.
Cohen Nir
Leo Stefano de
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