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On the conjugacy of pure imaginary elements of quaternion algebras and Cayley algebras
quaternion algebras Cayley algebras
2010/11/9
In the quatenions ($\H$, $\H'$, $\H^{C}$) and octonions ($\gC$, $\gC^\prime$, $\gC^C$), we show some results on the conjugacy of two pure imaginary non-zero elements with same norm.
Operator system structures on the unital direct sum of C*-algebras
Operator system structures direct sum of C*-algebras
2010/11/11
This work is motivated by R\u{a}dulescu's result on the comparison of C*-tensor norms on C*(F_n)\otimes C*(F_n).
For unital C*-algebras A and B, there are natural inclusions of A and B into the unit...