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Exercise 64.4.2. Given maps

\[ \Lambda ^{\oplus m} \xrightarrow {a} \Lambda ^{\oplus n} \quad \text{and}\quad \Lambda ^{\oplus n} \xrightarrow {b} \Lambda ^{\oplus m} \]

show that $\text{Tr}(ab) = \text{Tr}(ba)$.

Comments (2)

Comment #6784 by 杜长江 on

Maybe the source of should be ? Otherwise is not well defined. (Moreover, to make sure the latter definition of trace is well defined, one needs to be a map from to )

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View Exercise 64.4.2 as pdf