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单词 Jacobi's Determinant Identity
释义

Jacobi's Determinant Identity

Let

(1)
(2)

where B and are Matrices. Then
(3)

The proof follows from equating determinants on the two sides of the block matrices
(4)

where I is the Identity Matrix and O is the zero matrix.


References

Gantmacher, F. R. The Theory of Matrices, Vol. 1. New York: Chelsea, p. 21, 1960.

Horn, R. A. and Johnson, C. R. Matrix Analysis. Cambridge, England: Cambridge University Press, p. 21, 1985.


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